Tuesday Forecast

7:49AM

DAYS 1-5 (NOVEMBER 26-30)
Here come the final 5 days of November, with Thanksgiving right in the middle of them. So many people are thinking of errands and pre-holiday travel, and today will be a great day for both, at least in terms of weather, which will be fair and mild under high pressure. Things will change Wednesday as low pressure tracks north of the region while maturing and sending an occluding frontal system through the region. This will be good for some rain shower activity as it will be mild. This will not be a major factor in travel – just resulting in less-than-ideal conditions. For Thanksgiving Day, Thursday, this low pressure area will be moving away but rather significant by then, so we’ll catch its departing energy first thing in the morning with a few rain/snow showers around, and feel its wind throughout the day as chilly air arrives. This won’t be anything close to the arctic blast that we experienced last Thanksgiving, however, but if you do plan to travel or be out at football games or running races, keep in mind it will be rather chilly and breezy. If you are a late-night shopper, or just traveling home later at night after a long after-dinner nap, expect it to be cold with a biting breeze, but again not as harsh as one year ago. This chilly, dry, breezy weather will persist through “Black Friday” and into Saturday as well as we’ll be in a northerly flow between low pressure well offshore and a large high pressure area in east central Canada.
The forecast details…
TODAY: Mostly sunny. Highs 50-57. Wind SW 5-15 MPH.
TONIGHT: Increasing clouds. Lows 38-45. Wind S up to 10 MPH.
WEDNESDAY: Mostly cloudy. Passing rain showers, mainly afternoon. Highs 50-57. Wind SW 10-20 MPH, higher gusts possible.
WEDNESDAY NIGHT: Mostly cloudy. Passing rain showers. Lows 38-45. Wind NW 10-20 MPH, higher gusts.
THURSDAY (THANKSGIVING): Partly sunny. Brief light rain/snow shower possible early to mid morning. Highs 40-47. Wind NW 10-20 MPH, higher gusts.
THURSDAY NIGHT: Clear. Lows 20-27. Wind NW 10-20 MPH.
FRIDAY: Mostly sunny. Highs 38-45. Wind NW 10-20 MPH.
FRIDAY NIGHT: Mostly clear. Lows 22-29. Wind NW 10-20 MPH.
SATURDAY: Sun and high clouds. Highs 40-47. Wind NW 10-20 MPH, diminishing gradually.

DAYS 6-10 (DECEMBER 1-5)
Sprawling low pressure approaches from the west early in the period and while it will be a large system, its track is crucial for how much precipitation and what type it takes occurs December 1 into December 2. There should be rain/snow line involved and we’ll take a closer look at this event in the days ahead. Follow this with drier, colder weather and then a smaller system with a risk of snow/mix showers later December 4 or December 5.

DAYS 11-15 (DECEMBER 6-10)
A general west to east flow should bring 1 or 2 disturbances across the region with precipitation threats during this period. Temperatures swings should work out to near to slightly below normal for the period.

Winter Forecast 2019-2020

This winter’s outlook is the hardest one I’ve had to work out out of the last 3 or 4. There are factors that support different outcomes, although they do tend to appear to lean in a particular direction. To start, I’ve often mentioned that the weather pattern from late October and especially November can be a good indicator of the pattern for the upcoming winter, and in recent years the correlation of mild November to mild winter and cold November to cold winter has been pretty solid (last year being an exception). This November (with a few days left) is running up to a few degrees colder than normal so that would support a colder winter. One missing factor is an influence of either El Nino or La Nina, as we are going to sit in basically neutral ENSO territory. This tends to limit the activity in the subtropical jet stream, often the fuel for winter storms. However, limited activity still leaves the door open for some events to occur. Factors that support colder and/or snowy weather include solar minimum, which is very low sunspot activity, a large area of warmer than average water in the northeastern Pacific which tends to promote high pressure ridging in the western US and a colder trough further east, some warmer water in the northern Atlantic which can help promote high pressure there and induce a blocking pattern, early season rapidly advanced snowcover in Siberia and Canada which builds a cold reservoir, and lower than average sea ice in the Arctic which tends to warm the polar region and send lobes of colder air southward. Also watching a somewhat persistent tendency for the western Indian Ocean to be stormy while the east is rather dry, and this will impact one of the wildcard indices, MJO, which played havoc with last year’s forecast, even though many factors were different, and could very well do so again. You’ll hear that talked about during the season in blog discussions and comments. Another wildcard for the upcoming winter is the possibility of a sudden stratospheric warming event, one that is often forecast but does not always behave as forecast. This event can trigger polar vortex disruption as well and send lobes of much colder air southward. This does not always mean your particular region is going to end up in one of them, as there can be a misconception that this event means cold/stormy everywhere. So this and the MJO lurk like 2 atmospheric and oceanic bullies waiting to kick all the pieces around on your board game. How will it impact the winter forecast below? Time will tell. *** It’s important for me to note here that the biggest wild card to me is the stratospheric warming event and its timing and impact, which could essentially result in nearly a reversal of the expected January & later winter patterns, as what I have noted for February could occur earlier, and then a pattern similar to what I describe for January could occur coming out of that later in the winter. So with lower confidence than I’ve had the last few years, here’s an attempt at a month-by-month breakdown and seasonal overview of what I think is most likely for December 2019 until late March 2020.

DECEMBER
Making a strong case for the “as goes November, so goes the winter” correlation, the pattern for December looks like it wants to hold onto a lot of what November showed us, a lot of chill, a few storm events, but not persistently unsettled. But there is also a little bit of “remember October” in this pattern too, with the tendency for a ridge in the Southeast to want to be there at times. For New England, this pattern would likely result in regular passages of disturbances carrying Pacific moisture across the country but lacking re-energizing from the Gulf of Mexico, and this time with a more significant reservoir of cold air just to the north to either work with or pull down into the region after passage, depending on storm track details. A little more Southeast ridge, and we see a longer mild spell with shorter cold, while a little less Southeast ridge would lead to a more northwesterly flow and colder air more of the time here. We should see a bit of both, with the second scenario being slightly dominant. Something to watch in a pattern like this is the ability of a boundary to set-up west-to-east, parallel to the upper level flow, which can lead to larger areas of unsettled weather, even without a strong storm. This makes forecasting precipitation a little difficult, because I’d want to lean drier due to less subtropical moisture, but closer to normal because of the activity in the polar jet stream. And then you have the question of whether or not your precipitation episodes time with colder air (for frozen precipitation) or milder air (for rain). Coming out of the gate somewhat uncertain is not a great sign for forecasting deeper into the winter, but it is what it is. I’m going to rely on an old friend, “pattern persistence”, and go with a combination of weather patterns we saw progressing through the autumn.
Temperature: Slightly below normal as cold shots slightly outweigh milder interludes.
Precipitation: Slightly above normal, relying on one elongated boundary weather event to push totals up to achieve this.
Snow: Slightly above normal (but will need good timing of moisture & cold air to achieve this).

JANUARY
The changes in the large scale impacts talked above will be few, but subtle changes in things such as the wet west / dry east Indian Ocean pattern and the location of the warmer water in the northeastern Pacific and North Atlantic, as well as impacts from the possible SST warming event will all play roles. Since these are uncertain, the forecast itself carries a high degree of uncertainty, so I’ll have to rely on a little bit of climate modeling, some of which has indicated a relaxation of the Indian Ocean situation with a little less activity west and more east, but just a lesser degree of what is going on there now. This could allow MJO’s influence to become more prominent. Time the favorable-for-snow phases with some cold air and perhaps a temporarily active southern jet stream and we could grab ourselves a classic snowstorm. I think that’s going to be hard to do and we’ll have to rely on polar jet clipper type systems at least to start out the new year. Perhaps with time some things come together for a larger system from the south, which could just as easily track further west and be a bigger rain producer as it could be an offshore classic snowstorm. It’s a gamble and a guess with so many factors that can pull one way or another this particular season. I think if we end up with a snowy month this winter, this is going to be the one. ** See note about January / February patterns at the end of the discussion above. **
Temperature: Near to below normal.
Precipitation: Near normal.
Snow: Slightly above normal.

FEBRUARY
This is the month that I think things can come together for the greatest chance of blocking, because I feel that when all is said and done our SST event will be delayed and locations of warm waters in the Pacific and Atlantic will combine to produce our coldest weather, relative to normal. I’m also still relying on a quiet southern jet stream and dominant polar jet stream, which itself may end up suppressed to the south due to stronger blocking. This would end up a colder, drier pattern if it came together that way. Very minor wildcard is that we have seen some climate model indications that our ENSO neutral conditions may actually dip into weak La Nina territory by late winter.
** See note about January / February patterns at the end of the discussion above. **
Temperature: Below normal.
Precipitation: Below normal.
Snow: Slightly below normal.

MARCH
Plenty of lingering snow across Canada and the possible emergence of weak La Nina, and some persistence of the late winter pattern would lead me to think the March pattern would be chilly but on the drier side of normal, at least to start out. But this part of the forecast is worth very little more than just tossing darts and is really just a stretch / educated guess.
Temperature: Below normal early month, near normal later month.
Precipitation: Below normal.
Snow: Below normal.

WINTER SEASON OVERALL
Temperature: Slightly below normal.
Precipitation: Slightly below normal.
Snow: Near normal.
-Boston 40-50 inches
-Worcester 50-60 inches
-Providence 35-45 inches
-Hartford 45-55 inches

Monday Forecast

9:02AM

DAYS 1-5 (NOVEMBER 24-29)
High pressure builds in today which will be a fair and “November nice” day, a little cool but not bad. This high slips off to the east Tuesday, another nice but even milder day in which many locations may reach or slightly exceed 50 for high temperatures. These are both good days for travel and errands and just regular commutes in the region, at least in terms of weather. We don’t go 3 for 3 however, as Wednesday will be an unsettled, albeit mild day, as a mature low pressure area traveling through the Great Lakes and into the St. Lawrence Valley pushes a frontal system across the region. This front, in its occlusion stage, will start to spawn a new low pressure area just as it passes offshore, and while this won’t make the day any stormier, it will serve to pull down some chilly and dry air in time for Thanksgiving Day on Thursday. There may be enough cold air aloft for some passing clouds and even a brief sprinkle of rain or flurry of snow, but the day will be dry otherwise, just breezy and chilly, so you’ll want to keep that in mind for football game and local travel. Thursday night / early Friday, for those venturing back from holiday visits or venturing out to join the ranks of shoppers in the dark of night, it’ll be on the cold side, and still rather breezy, so dress for it. It will not be as brutally cold as last year was, however. The daytime hours of Friday will be dry and chilly as well, as we’ll be in a northerly air flow as the new low that went offshore later Wednesday will still be out there in large, mean form, just too far east to have any direct impact on this area besides a gusty breeze.
The forecast details…
TODAY: Partly cloudy morning. Mostly sunny afternoon. Highs 45-52. Wind W 5-15 MPH.
TONIGHT: Mostly clear. Lows 26-33. Wind W up to 10 MPH.
TUESDAY: Mostly sunny. Highs 49-56. Wind SW 5-15 MPH.
TUESDAY NIGHT: Increasing clouds. Brief light rain possible pre-dawn. Lows 38-45. Wind S up to 10 MPH.
WEDNESDAY: Mostly cloudy. Episodic rain showers. Highs 53-60. Wind SW 10-20 MPH, higher gusts possible.
WEDNESDAY NIGHT: Clearing. Lows 25-32. Wind NW 10-20 MPH, higher gusts.
THURSDAY (THANKSGIVING): Partly sunny. Brief light rain/snow shower possible. Highs 39-46. Wind NW 10-20 MPH, higher gusts.
THURSDAY NIGHT: Clear. Lows 20-27. Wind NW 10-20 MPH.
FRIDAY: Mostly sunny. Highs 38-45. Wind NW 10-20 MPH.

DAYS 6-10 (NOVEMBER 30-DECEMBER 4)
Dry, breezy, cool November 30 as a northwesterly air flow hangs on for at least part of the day. And then when December comes, forecast confidence plunges. Today we still have 3 different solutions from 3 major models as to the evolution of an upcoming storm threat to start off the new month. And please don’t take the phrase “storm threat” as “uh-oh, here comes a big storm”. It probably won’t be that powerful a system, but it may take a while to evolve and occur, with the details not really decipherable until we get a little closer. For now, I am staying with yesterday’s idea of a drawn out, multi-stage evolution, which would result in cloudiness arriving with a light precipitation threat eventually for December 1, milder air taking over with a rain threat for December 2, then a switch to windy, colder, drier weather behind the departing system December 3-4. That’s the general idea for now, but it’s subject to change for sure.

DAYS 11-15 (DECEMBER 5-9)
No changes to this part of the outlook. Looking for lack of subtropical jet stream overall with mean ridge position between the US Southeast and lower Mississippi Valley, fast flowing polar jet stream to the north. Will have to watch the boundary between in case unsettled weather tries to string out along it and impact this area longer. Otherwise most systems are quick moving and relatively minor with temperature swings rather frequent.

Sunday Forecast

8:20AM

DAYS 1-5 (NOVEMBER 24-28)
A Sunday soaker as low pressure tracks across the South Coast later today and dumps a good amount of moisture on the region in the form of rain as it intensifies fairly rapidly and maxes out as it passes by. But it’s moving right along and the 2 days that follow will be very nice by late November standards, governed by high pressure with fair and mild conditions, and good for pre-Thanksgiving shopping/travel as well as just regular commuting on those days. I must note, importantly, that as the sky clears during the pre-dawn hours of Monday and winds diminish enough in some areas, a rapid cool-down to near freezing air temperature very well could mean below freezing air right at ground level, resulting in the formation of black ice on untreated surfaces away from the immediate coast or in warmer urban locatoins, so be on the look-out for that if venturing out early in the day Monday. Wednesday, “the big travel day”, won’t be as nice, weather-wise, as a vigorous low pressure area passes north of the region and drags its warm front / cold front combination through the region with some periods of wet weather, but coming with mild conditions here in southeastern New England, snow will not be an issue whatsoever. So what about the holiday itself on Thursday? Well remember last Thanksgiving? Yeah, temperatures in the teens to around 20, wind chills below zero, bright ineffective sunshine? The weather map will actually look somewhat similar to that this time too, but without the intense core of Arctic air we saw then, so it looks like a breezy, bright, more typically chilly late November day, quite perfect for Thanksgiving if you ask me, although it will be on the nippy side for football, and we will have wind chill, but it won’t nearly match that of 2018. Onto the forecast details…
TODAY: Overcast. Steady light rain, at times moderate rain, and possibly periods of heavy rain. Areas of fog. Highs 40-47. Wind NE 5-15 MPH interior areas and 10-20 MPH coast with higher gusts. Minor coastal flooding in prone areas at high tide times.
TONIGHT: Cloudy evening with rain ending, some drizzle and fog lingering. Clearing overnight with areas of black ice forming. Lows 28-35. Wind N 5-15 MPH.
MONDAY: Mostly sunny. Highs 45-52. Wind W 5-15 MPH.
MONDAY NIGHT: Mostly clear. Lows 26-33. Wind W up to 10 MPH.
TUESDAY: Mostly sunny. Highs 49-56. Wind SW 5-15 MPH.
TUESDAY NIGHT: Increasing clouds. Brief light rain possible pre-dawn. Lows 38-45. Wind S up to 10 MPH.
WEDNESDAY: Mostly cloudy. Episodic rain showers. Highs 53-60. Wind SW 10-20 MPH, higher gusts possible.
WEDNESDAY NIGHT: Clearing. Lows 25-32. Wind NW 10-20 MPH, higher gusts.
THURSDAY (THANKSGIVING): Mostly sunny. Highs 39-46. Wind NW 10-20 MPH, higher gusts.

DAYS 6-10 (NOVEMBER 29-DECEMBER 3)
“When Black Friday comes” (kudos if you get this reference) expect fair, breezy, cool weather, and much the same for the final day of November, as low pressure hangs out in the Canadian Maritimes for a couple days before finally moving east. Today we’re seeing a larger spread in medium range guidance as to what happens in the first few days of December, with one of the major models bringing a wet weather system (mostly rain, maybe some mix/snow at least nearby) for December 1 then a turn to windy/colder weather after that with maybe a few snow flurries, while another major model evolves the situation more slowly, with a drier December 1, mainly rain event December 2, and dry or a few snow flurries with wind and cold for December 3. My current thoughts are somewhere between this, with a leaning toward the slower solution.

DAYS 11-15 (DECEMBER 4-8)
Large scale pattern likely features high pressure ridge Southeast US and fast flowing jet stream across the north. For New England, this pattern can feature brief unsettled periods unless a front strings out west-to-east along the flow. Leaning toward shorter impact systems and quick temperatures swings at this time, leaning to the colder side of normal, basically a clipper type pattern. This pattern can, if timing is right, start to put some snow on the ground, but usually in small increments.

Saturday Forecast

8:38AM

DAYS 1-5 (NOVEMBER 23-27)
A weekend split, dry with a seasonable chill today, followed by a rainy Sunday. Today’s a good day to get some final outside cleanup done if you have not gotten to it. Tomorrow will be a perfect inside day, but if you happen to be going to the Patriots game, well, can’t help you with that one, although the steadiest rain may very well have ended by or shortly after the start of the game. Either way, a damp and cool November evening for that one as low pressure will be passing by just to the south. But behind this, high pressure will bring 2 very nice and fairly mild days for November on Monday and Tuesday. That’s also good regional travel weather for pre-Thanksgiving travel. The day before the holiday ends up somewhat unsettled, but for our region it doesn’t look like too big a deal at the moment, just a cold frontal passage with some rain shower activity and fairly mild air. So that ends up being a not-too-bad travel day either as well.
Forecast details…
TODAY: Mostly sunny. Highs 37-44. Wind NW 5-15 MPH, higher gusts, diminishing with time.
TONIGHT: Clouding over. Lows 25-32. Wind N under 10 MPH.
SUNDAY: Cloudy. Rain likely, may begin as mixed precipitation higher elevations of north central MA and southwestern NH. Highs 40-47. Wind
NE 5-15 MPH interior, 10-20 MPH coast, higher gusts possible.
SUNDAY NIGHT: Cloudy evening with rain ending, some drizzle and fog lingering. Clearing overnight with areas of black ice forming. Lows 27-34. Wind N 5-15 MPH.
MONDAY: Mostly sunny. Highs 45-52. Wind W 5-15 MPH.
MONDAY NIGHT: Mostly clear. Lows 25-32. Wind W up to 10 MPH.
TUESDAY: Mostly sunny. Highs 46-53. Wind SW 5-15 MPH.
TUESDAY NIGHT: Increasing clouds. Lows 38-45. Wind S up to 10 MPH.
WEDNESDAY: Variably cloudy. Chance of rain showers. Highs 53-60. Wind SW 10-20 MPH.

DAYS 6-10 (NOVEMBER 28-DECEMBER 2)
Thanksgiving Day, Black Friday, and the final day of November currently look dry, breezy, and chilly as the low pressure area that passes midweek temporarily slows down and expands near southeastern Canada with high pressure to the west. Things start moving along again so that December starts unsettled with a risk of rain/mix/snow as broad low pressure moves in from the west. Too early for any details.

DAYS 11-15 (DECEMBER 3-7)
Ridge of high pressure southeastern US, westerly flow northern US, changeable weather for this area, starting chilly/dry and likely turning out somewhat unsettled with a rain/snow threat. Again no way to pinpoint any details so far in advance, just leaning toward the progression from fair to unsettled during this particular period of days.

Friday Forecast

7:22AM

DAYS 1-5 (NOVEMBER 22-26)
Today will be the mildest day of the week as a warm front is passing through to start the day, putting southeastern New England into a warm sector between it and an approaching cold front for several hours, but this cold front won’t waste much time coming through, and after producing a round of rain showers will introduce a chilly wind to the region, which will continue tonight and into Saturday with the return of fair weather. Weather systems moving right along means the next low pressure area will be pouncing upon our area by early Sunday, making that a mostly wet day, except some mix or snow possible near the start and end of the event favoring higher elevations of the interior. Exit, stage east for that low Sunday night, and in comes dry and pleasant weather by November standards for Monday and Tuesday as a sprawling high pressure exerts its control.
Forecast details…
TODAY: Mostly cloudy. Afternoon rain showers possible. Highs 48-53 southern NH and central MA, 54-59 southeastern MA and RI. Wind SW 10-20 MPH, higher gusts.
TONIGHT: Clearing. Lows 25-32. Wind NW 10-20 MPH, higher gusts.
SATURDAY: Mostly sunny. Highs 36-43. Wind NW 10-20 MPH, diminishing gradually.
SATURDAY NIGHT: Clouding over. Lows 25-32. Wind N under 10 MPH.
SUNDAY: Cloudy. Rain likely, except mix/snow possible for a while interior higher elevations mainly morning. Highs 38-45 south. Wind NE 5-15 MPH interior, 10-20 MPH coast, higher gusts possible.
SUNDAY NIGHT: Cloudy evening with rain except interior higher elevation mix/snow possible evening. Clearing overnight. Black ice formation likely. Lows 27-34. Wind N 5-15 MPH.
MONDAY: Mostly sunny. Highs 45-52. Wind W 5-15 MPH.
MONDAY NIGHT: Mostly clear. Lows 25-32. Wind W up to 10 MPH.
TUESDAY: Mostly sunny. Highs 46-53. Wind SW 5-15 MPH.

DAYS 6-10 (NOVEMBER 27-DECEMBER 1)
West to east flow pattern with a general ridge of high pressure US Southeast and varying amplitude polar jet stream domination northern US. For us this is a pattern of fast-moving systems and it’s always hard to pin down timing and strength of each system as it moves along. Current indications are for a low passing north of the region November 27 with a few rain showers, a shot of colder air with gusty wind for November 28 (Thanksgiving) into November 29, a weak system moving through with a few rain/snow showers November 30, and a broader low pressure system approaching from the west with a precipitation threat about December 1. Will monitor the evolution of the pattern.

DAYS 11-15 (DECEMBER 2-6)
Much the same type of pattern continues. Up and down temperatures, but shots of cold air can be rather sharp. Unsettled weather is most likely very early and again later in the period but low confidence on any timing and scope of systems this far in advance.

Thursday Forecast

7:01AM

DAYS 1-5 (NOVEMBER 21-25)
High pressure brings a nice late November day to the region today, and is a little hint of what returns at the end of this period as well. Between these 2 nice days lies some changeable weather, with 2 unsettled days, the first on Friday from a low pressure area tracking across southeastern Canada, southern New England on the mild side, with more cloudiness than anything and only a limited precipitation threat from a passing warm front pre-dawn and a passing cold front late-day. The second unsettled day will be due to low pressure developing in the south central US and tracking over or just south of southern New England Sunday, bringing a rainy spell (higher elevations may see a mix). This system does not look like a big storm and we’ll also have to eye the timing of rain’s end with regard to the Patriots home game. One other note! If the sky is clear enough tonight, we have the potential to see a brief meteor storm, dubbed the “Unicorn Meteor Storm” as earth passes through a very narrow stream of comet debris. It is no guarantee but a rate of up to 400 meteors per hour is possible but over a very short time window of 11:40PM to midnight. If we did see anything the radiant direction would be from the southeast, near Monoceros Constellation. If it looks like it will be clear enough and you want to try to see this, get to as dark an area as possible. Good luck!
Forecast details…
TODAY: Mostly sunny. Highs 45-52. Wind W 5-15 MPH.
TONIGHT: Increasing clouds. A period of light rain/sleet possible northern MA / southern NH pre-dawn. Lows 33-40. Wind SW up to 10 MPH.
FRIDAY: Variably cloudy. Afternoon rain showers possible. Highs 48-55. Wind SW 10-20 MPH, higher gusts.
FRIDAY NIGHT: Partly cloudy. Lows 25-32. Wind NW 10-20 MPH, higher gusts.
SATURDAY: Mostly sunny. Highs 36-43. Wind NW 10-20 MPH, diminishing gradually.
SATURDAY NIGHT: Clouding over. Lows 25-32. Wind N under 10 MPH.
SUNDAY: Cloudy. Rain likely, brief mix interior higher elevations, tapering off late. Highs 38-45 south. Wind NE 5-15 MPH interior, 10-20 MPH coast, higher gusts possible.
SUNDAY NIGHT: Cloudy evening with lingering drizzle and areas of fog. Clearing overnight. Watch for black ice formation. Lows 28-35. Wind N 5-15 MPH.
MONDAY: Mostly sunny. Highs 45-52. Wind W 5-15 MPH.

DAYS 6-10 (NOVEMBER 26-30)
Weather pattern expected to feature a west to east flow, storm track north of New England, with 2 cold frontal passages favoring late November 27 / early November 28 and again late November 29 early November 30. These would bring minor precipitation threats favoring rain showers. Much of the week expected to be dry with overall temperatures near to slightly above normal.

DAYS 11-15 (DECEMBER 1-5)
A storm tracking northwest of New England early in the period should produce a period of mainly rain but may be followed by a significant shot of cold air, at least briefly, before temperatures moderate. Next system (probably a Great Lakes low) may approach late period.

Wednesday Forecast

6:26AM

DAYS 1-5 (NOVEMBER 20-24)
An ocean storm will move northeastward passing east of New England today and tonight, but an inverted trough extending back over New England will allow for unsettled weather starting out as areas of fog and drizzle then becoming rain and snow showers. The most likely areas to see snow showers will be interior locations northwest of Boston to start, then progressing south and east with time through evening, but no accumulation of snow will occur from this activity save for brief dustings on unpaved surfaces especially this evening. Dry air arrives overnight and we’ll need to watch for some spotty ice on surfaces that don’t dry off. But that dry air means a nice day Thursday as high pressure dominates. With weather systems moving right along we’ll be seeing low pressure track north of the region Friday, bringing a warm front / cold front combo across the region. The warm front may result in a touch of light rain/sleet in the pre-dawn hours on Friday, and the cold front will bring a rain shower risk later Friday, with a nice shot of mild air between the two precipitation threats. Looking ahead to the weekend, the early call is for a split, with high pressure bringing chilly but fair weather Saturday, and a low pressure area bringing a shot at some precipitation Sunday – the details to be fine-tuned as it gets closer.
Forecast details…
TODAY: Mostly cloudy. Scattered to numerous rain/snow showers. Highs 38-45. Wind NW 5-15 MPH, higher gusts.
TONIGHT: Snow/rain showers end evening, then clearing. Spotty black ice. Lows 28-35. Wind W 5-15 MPH.
THURSDAY: Mostly sunny. Highs 45-52. Wind W 5-15 MPH.
THURSDAY NIGHT: Clouding up. A period of light rain/sleet possible northern MA / southern NH overnight. Lows 33-40. Wind SW up to 10 MPH.
FRIDAY: Mostly cloudy. Rain showers likely, mainly afternoon. Highs 48-55. Wind SW 10-20 MPH, higher gusts.
FRIDAY NIGHT: Partly cloudy. Lows 25-32. Wind NW 10-20 MPH, higher gusts.
SATURDAY: Mostly sunny. Highs 36-43. Wind NW 10-20 MPH, diminishing gradually.
SATURDAY NIGHT: Clouding over. Lows 25-32. Wind N under 10 MPH.
SUNDAY: Cloudy. Rain/mix/snow possible. Highs 35-40 north, 40-45 south. Wind NE 5-15 MPH.

DAYS 6-10 (NOVEMBER 25-29)
Weather pattern for Thanksgiving Week expected to feature a west to east flow, storm track north of New England, with 2 cold frontal passages favoring late November 27 / early November 28 and again late November 29 early November 30. These would bring minor precipitation threats favoring rain showers. Much of the week expected to be dry with overall temperatures near to slightly above normal.

DAYS 11-15 (NOVEMBER 30-DECEMBER 4)
As we end November and head into December the pattern is likely to resemble somebody shaking a rope with lots of progressive ridges and troughs wet to east across the US, so timing things will be very difficult so far in advance. But two things we may see heading into the early days of December include the risk of a somewhat widespread snowfall and a return to somewhat colder weather.

Tuesday Forecast

7:12AM

DAYS 1-5 (NOVEMBER 19-23)
There’s enough uncertainty in guidance these days for me to not do the see-saw thing, but rather make very few changes unless I glaringly see something going wrong (and this will apply to the 6-10 & 11-15 day periods below as well). So summarizing, a slug of rain (some interior higher elevations mix/snow) this morning moves northward beyond the region leaving us with clouds that may break this afternoon. Storminess we’d been eyeing for midweek evolves too far offshore for direct impact other than maybe a brief rain/snow shower Wednesday from an inverted trough that reaches from it toward southern New England, a feature somewhat common to such systems. Thursday’s the nice day in terms of the most sunshine, while Friday’s the pick-of-the-week for milder air, but it comes with cloudiness and a threat of rain showers as low pressure passes north of the region. The cold front that trails the low introduces another November chill for Saturday, but this one will not be as sharp as the series we just went through.
Forecast details…
TODAY: Cloudy morning with a period of rain that may mix with or briefly turn to snow before ending over interior higher elevations, but no snow accumulation. Mostly cloudy afternoon. Highs 38-45. Wind variable to W 5-15 MPH.
TONIGHT: Mostly cloudy. Lows 28-35. Wind NW 5-15 MPH.
WEDNESDAY: Mostly cloudy. Scattered rain/snow showers. Highs 38-45. Wind NW 5-15 MPH, higher gusts.
WEDNESDAY NIGHT: Partly cloudy. Lows 30-37. Wind W 5-15 MPH, higher gusts.
THURSDAY: Mostly sunny. Highs 45-52. Wind W 5-15 MPH.
THURSDAY NIGHT: Clouding up. A period of light rain/sleet possible northern MA / southern NH overnight. Lows 33-40. Wind SW up to 10 MPH.
FRIDAY: Mostly cloudy. Rain showers likely, mainly afternoon. Highs 48-55. Wind SW 10-20 MPH, higher gusts.
FRIDAY NIGHT: Partly cloudy. Lows 25-32. Wind NW 10-20 MPH, higher gusts.
SATURDAY: Mostly sunny. Highs 36-43. Wind NW 10-20 MPH, diminishing gradually.

DAYS 6-10 (NOVEMBER 24-28)
Still low confidence but keeping the same general idea of watching 1 or 2 low pressure areas passing south of the region November 24-25, possibly close enough, especially November 24, for brief impact with precipitation, and another low pressure area probably passing north of the region later in the period with some unsettled weather at least briefly possible in the November 27-28 window. Thanksgiving is November 28 so leading up to and including that date weather will be closely watched for any travel impact.

DAYS 11-15 (NOVEMBER 29-DECEMBER 3)
Also a low confidence forecast but will see a westerly air flow, ridge of high pressure in the southeastern US and plenty of cold air in Canada. This puts us in a zone where we can have brief storminess but quick temperatures swings, depending on the exact set-up. There’s one scenario that could give SNE its first regional snowfall of the season somewhere in the December 1-3 window. Can’t say more than that right now.

Monday Forecast

7:37AM

DAYS 1-5 (NOVEMBER 18-22)
We start this late autumn day with a winterish issue, and that is pockets of icing where drizzle is occurring over some inland locations. Surfaces are just cold enough in some cases, especially untreated walks, stairs, overpasses, etc., for some very light glazing as the drizzle falls into air that sits just below freezing, so be careful if you are heading out and test surfaces before you fully commit to them. The issue won’t last long, even though some areas of light rain will be moving in as an ocean storm passes by today, because temperatures will rise to above freezing in all areas, although not that far above, making it a very chilly and raw mid November day. Incidentally, some locations will receive more rainfall from a follow-up disturbance crossing the region Tuesday morning than they see today, and that ran may mix with or even end as snow with borderline temperatures over interior higher elevations by midday Tuesday. Beyond that, the departure of this system and the further offshore evolution of another storm Wednesday mean gusty and chilly but drier weather into midweek. If there is a pick of this 5-day period it will no doubt be Thursday, as it will be fair and slightly milder as high pressure passes to the south of the region. However the mildest day of the stretch will be Friday, but the trade-off will be rain showers returning as low pressure tracks north of the region and drags a warm front through very early in the day and a cold front across the region later.
Forecast details…
TODAY: Overcast. Areas of drizzle, some freezing drizzle especially interior locations west of I-95 through mid morning. Periods of light rain (maybe briefly heavier Cape Cod) mid morning on. Highs 33-40. Wind NE-N 5-15 MPH interior, 15-25 MPH coast, gusts 30-50 MPH possible Cape Ann and Cape Cod. Minor coastal flooding around high tide times.
TONIGHT: Overcast. Periods of light rain evening. Areas of drizzle. Temperatures steady 33-40. Wind N 10-20 MPH, higher gusts especially coastal areas and higher elevations, during the evening before diminishing somewhat overnight.
TUESDAY: Cloudy morning with a period of rain that may mix with or briefly turn to snow before ending over interior higher elevations, but no snow accumulation. Mostly cloudy afternoon. Highs 38-45. Wind variable to W 5-15 MPH.
TUESDAY NIGHT: Partly cloudy. Lows 28-35. Wind NW 5-15 MPH.
WEDNESDAY: Partly sunny to mostly cloudy. Highs 38-45. Wind NW 10-20 MPH, higher gusts especially Cape Cod.
WEDNESDAY NIGHT: Partly cloudy. Lows 30-37. Wind W 5-15 MPH.
THURSDAY: Mostly sunny. Highs 45-52. Wind W 5-15 MPH.
THURSDAY NIGHT: Clouding up. A period of light rain possible northern MA / southern NH overnight. Lows 38-45. Wind SW up to 10 MPH.
FRIDAY: Mostly cloudy. Rain showers likely, mainly afternoon. Highs 48-55. Wind SW 10-20 MPH, higher gusts.

DAYS 6-10 (NOVEMBER 23-27)
The weekend before Thanksgiving and the days leading up to the holiday are big food shopping and travel days, along with a handful of regular (or irregular) work commutes, and are vulnerable to foul weather. The weather pattern during this period, likely to be dominated by a fast west to east flow, makes it a little difficult to pin down what will happen so many days in advance. For example, 3 different medium range models have 3 different solutions for the November 23-25 period. What I do know is that we will likely watch a low pressure system or two passing south of the region sometime between late November 23 and November 25, but it is not clear at this point whether or not it will be close enough to impact the weather directly in southern New England. If I had to venture a gut feeling guess, it’s that after a shot of cold air for November 23, one low will come by and close enough for at least cloudiness and possible brief rain/mix as it passes by to the south early November 24, with a second one also passing south of the region November 25. This would be followed by fair weather and typical November chill for November 26, and then we would have to watch for another system from the west by the end of the period – way too far out for details.

DAYS 11-15 (NOVEMBER 28-DECEMBER 2)
If the 6-10 DAY is low confidence, you can be assured that this further-out-in-time period is even lower confidence. I believe the overall jet stream will be a fast-flowing west to east but appearing like somebody creating waves in a rope. So the only thing I can say is that while it may not be outright stormy it may be active with several changes in the weather to track.

Sunday Forecast

7:20AM

DAYS 1-5 (NOVEMBER 17-21)
The wildcard was lower cloudiness, and we have some of that, but not too extensively, to start the day, so still some areas see sunshine for a while, but either way as the day goes on the higher cloud shield from the coastal / ocean storm to the south of New England will be increasing anyway, so sun eventually loses the battle either way. Rainfall from this system, as previously mentioned, must fight quite a bit of dry air to get going here and that particular battle won’t really be won until the early morning hours of Monday, south to north. This turns Monday wet for everyone eventually, and there still may be a few pockets of freezing rain over portions of central MA, interior northeastern MA, and interior southern NH. I don’t think the cold air will be deep enough to support any sleet. Any freezing rain will be fleeting too as temperatures warm to above freezing by midday Monday at the latest in those locations. Elsewhere, no icing issues with this. The low center passes east of New England Monday night and rain shuts off, but lower level moisture may keep drizzle going, and then Tuesday a lobe of energy or a trailing trough may produce another period of rain (maybe some mix higher elevations central MA and southwestern NH) as it pulls through the region during the morning hours. This is a change from yesterday’s thinking of temporary drying out timed for the morning. Drier air eventually gets in later Tuesday and may be more dominant than previously expected for Wednesday as another storm system evolves well offshore and is not a factor in the weather here, other than to help freshen a northweterly wind between itself and high pressure approaching from the Ohio Valley and southern Great Lakes. This high will pass south of the region resulting in a very nice Thursday, which puts us to exactly one week before Thanksgiving…
Forecast details…
TODAY: Partly sunny to mostly cloudy. Highs 38-45. Wind NE to E 5-15 MPH.
TONIGHT: Becoming cloudy. Rain arrives south to north overnight. Pockets of sleet/freezing rain possible interior higher elevations of central MA and southwestern NH. Lows 30-37. Wind NE 5-15 MPH except 15-25 MPH Cape Cod.
MONDAY: Cloudy. Periods of rain mainly morning through early afternoon. Highs 38-45. Wind NE 10-20 MPH except 15-30 MPH South Coast, higher gusts possible.
MONDAY NIGHT: Cloudy. Areas of drizzle and fog. Lows 35-42. Wind NE to N 10-20 MPH.
TUESDAY: Cloudy morning with a period of rain except possibly some ice/sleet central MA and southwestern NH. Variably cloudy afternoon.
Highs 40-47. Wind N 5-15 MPH, a few higher gusts.
TUESDAY NIGHT: Mostly cloudy. Lows 30-37. Wind N 5-15 MPH, a few higher gusts.
WEDNESDAY: Partly sunny. Highs 40-47. Wind NW 10-20 MPH, higher gusts.
WEDNESDAY NIGHT: Clearing. Lows 30-37. Wind W 5-15 MPH, higher gusts.
THURSDAY: Mostly sunny. Highs 43-50. Wind W 5-15 MPH.

DAYS 6-10 (NOVEMBER 22-26)
Low pressure passes north of the region and drags a frontal system through on November 22 with unsettled weather. Dry/chilly November 23. Another low passes south of the region November 24, possibly close enough for rain and even some mix. Fair, chilly weather thereafter.

DAYS 11-15 (NOVEMBER 27-DECEMBER 1)
Will watch for another frontal system passing through around the start of the period from a low that will track across southeastern Canada, exact timing not clear this far out. Another relatively minor system should be passing by around November 29, but again timing uncertain. Overall westerly flow with changeable temperatures but nothing too extreme.

Saturday Forecast

7:50AM

DAYS 1-5 (NOVEMBER 16-20)
We are just beyond the mid point of this next-to-last month of 2019 and we’ve been feeling hints of winter, in some cases more than hints, like the sharpness of a couple cold air masses that had their sources in Siberia or near the North Pole. Santa must be in the spirit early! Anyway, another shot of that air is with us now, a little less stinging than the previous one, but nevertheless if you are outside today you’ll feel it, despite the bright but low angle November sunshine that rose in the 6AM hour and will say goodnight before 4:30PM. The high pressure area responsible for this latest batch of cold will not fully cross the region, but bank itself just to the north of here, then slide to the east. It will be strong enough, however, to hold a developing ocean storm south of New England somewhat at bay for a period of time, keeping it dry and at least partially sunny on Sunday as high cloudiness tries to increase across the the region while fighting dry air. A wildcard is whether or not we see any lower level ocean cloudiness come in from the east. This may be the case for some eastern areas of MA and NH and perhaps into RI. With this somewhat uncertain aspect of the forecast even 24 hours in advance I’ll keep simple wording in the details below then expand if needed for tomorrow’s update. Regardless, Sunday will be precipitation-free during the day, and probably for a good deal of the evening until finally later at night the moisture from the south starts to win the battle in more and more of the atmosphere. But this storm, unlike the NAM’s prediction of a close-to-the-coast track, is probably going to end up a little further offshore and we’ll be more on the outskirts of its envelope of moisture rather than right in the thick of it. Somewhat heavier rainfall may get close to or onto Cape Cod and perhaps near the MA eastern coast, but to me this looks largely like a lighter rain event. But what about that freezing rain/sleet that the news said may happen? Yes, it may happen, if we have enough precipitation, over interior higher elevations of central MA and southwestern NH, so that will be something to watch for in the early hours of Monday. In some cases the ground is still too warm to support any freezing of precipitation, but there are exceptions, so it’s just better to be aware of what is possible. Any freezing/frozen stuff there will be short-lived as anything else that falls will be rain, but then the progressive nature of the system will bring it north and we’ll see a wind-down of rainfall. A few back-side patches of light rain/sleet may visit central MA and southern NH into Monday night. In previous updates I’d kept the clouds in tight for Tuesday, but enough dry air may get into the region behind the first system to clear us out at least partially for a while early Tuesday, and if we’re lucky enough it may not even by that bad a day. But what about the next system for Wednesday? Yup. It’ll be there – somewhere – probably too far offshore to have much of an impact other than a gusty northerly wind and a lot of clouds. We likely escape its entire precipitation shield but have enough unstable air over us for a rain or snow shower as temperatures will be borderline as far as precipitation-type goes. If I had to guess one way, odds favor rain showers over snow showers.
Forecast details…
TODAY: Sunny. Highs 32-39. Wind NW 10-20 MPH with higher gusts, diminishing slightly this afternoon. Wind chill in the 10s this morning, 20s at times this afternoon.
TONIGHT: Clear. Lows 15-22 interior valleys, 22-29 elsewhere. Wind N under 10 MPH.
SUNDAY: Partly sunny. Highs 38-45. Wind NE to E 5-15 MPH.
SUNDAY NIGHT: Becoming cloudy. Rain arrives south to north overnight. Pockets of sleet/freezing rain possible interior higher elevations of central MA and southwestern NH. Lows 30-37. Wind NE 5-15 MPH except 15-25 MPH Cape Cod.
MONDAY: Cloudy. Periods of rain mainly morning through early afternoon. Highs 38-45. Wind NE 10-20 MPH except 15-30 MPH South Coast, higher gusts possible.
MONDAY NIGHT: Mostly cloudy. Brief rain/ice/sleet possible central MA and southern NH. Lows 30-37. Wind NE to N 10-20 MPH.
TUESDAY: Variably cloudy. Highs 40-47. Wind N 5-15 MPH, a few higher gusts.
TUESDAY NIGHT: Mostly cloudy. Lows 30-37. Wind N 5-15 MPH, a few higher gusts.
WEDNESDAY: Mostly cloudy. A rain or snow shower possible. Highs 38-45. Wind N 10-20 MPH, higher gusts.

DAYS 6-10 (NOVEMBER 21-25)
Weather systems should be moving along rather swiftly and we should see a nice day to start the period November 21, a quick-moving frontal system and low pressure area with unsettled weather for at least a portion of November 22 before a shot of chilly air arrives with wind which lasts into November 23 with dry weather. Watching for a passing low pressure system (quicker than previously though) November 24 with a precipitation threat, probably rain, but may stay south. If the pattern is as progressive as I currently think then we see dry weather back for the end of the period, kind-of, as there may be another trough approaching by late November 25. Note: Not super high confidence and this may still change.

DAYS 11-15 (NOVEMBER 26-30)
Specific timing is iffy but there may be a departing trough with rain/snow showers to start then another system sometime later in the period (November 29?) with a precipitation threat. Looks like a fast-moving weather pattern with no major storminess at this time, and dry weather the vast majority of the time.

Friday Forecast

7:44AM

DAYS 1-5 (NOVEMBER 15-19)
A warm front went by overnight, taking away whatever remained of the cold air mass that was in place. Today will be a mild day with fair weather, but 2 cold fronts are set to pass by, one this afternoon and one tonight. The second front will be producing snow showers in northern New England but the moisture with it will dry up before reaching southern New England, so tonight just some clouds will mark its passage. But you will feel the return to cold air, along with wind, behind this front for Saturday. This bubble of high pressure from Canada is going to remain centered to the north of the region during the weekend, sliding to the east, and while this happens a low pressure area will organize off the US Southeast / Mid Atlantic coast but rapidly mature and peak in strength well to the south of New England, but as it fills, broadens, and weakens gradually, it will bump up against the departing high pressure area late in the weekend and bring a breezy wet weather event to southeastern New England Sunday night into Monday. We’ll have lost any cold air aloft by then, so whatever falls from the sky will be liquid. The only risk of anything frozen taking place is a bit of sleet or freezing rain in higher elevations of central MA and southwestern NH Sunday night and very early Monday as just cold enough air may be in place at the surface. That system will be out of here later Monday, but a general northeasterly air flow will keep low level moisture in place through Tuesday, so at this point it does not look like much clearing will take place initially behind the low pressure system. If the air flow ends up more northerly than currently anticipated, we’d see some clearing.
Forecast details…
TODAY: Mostly sunny. Highs 45-52. Wind W increasing to 10-20 MPH.
TONIGHT: Partly cloudy evening. Clear overnight. Lows 22-30. Wind NW 10-20 MPH, higher gusts. Wind chill falling to the 10s overnight.
SATURDAY: Mostly sunny. Highs 32-39. Wind NW 10-20 MPH, higher gusts. Wind chill in the 20s.
SATURDAY NIGHT: Clear. Lows 15-22 interior valleys, 22-29 elsewhere. Wind N under 10 MPH.
SUNDAY: Increasing high clouds. Highs 38-45. Wind NE up to 10 MPH.
SUNDAY NIGHT: Lowering overcast. Rain arrives south to north. Pockets of sleet/freezing rain possible interior higher elevations of central MA and southwestern NH. Lows 30-37. Wind NE 5-15 MPH except 15-25 MPH Cape Cod.
MONDAY: Cloudy. Periods of rain mainly morning. Highs 38-45. Wind NE 10-20 MPH except 15-30 MPH South Coast, higher gusts possible.
MONDAY NIGHT: Mostly cloudy. Lows 33-40. Wind NE 10-20 MPH, higher gusts.
TUESDAY: Mostly cloudy. Highs 40-47. Wind NE 10-20 MPH, higher gusts coast.

DAYS 6-10 (NOVEMBER 20-24)
Another low pressure area has to be watched but current indications are it will pass pretty far offshore with just cloudiness and wind here on November 20, then a westerly air flow brings in slightly milder and dry air for November 21 before a low pressure area tracking eastward and passing north of the region November 22 brings its fronts through and results in more unsettled weather. Things moving right along means a return to fair weather for November 23, but by later November 24 we may already be eyeing low pressure tracking from the Tennessee Valley to the Mid Atlantic Coast.

DAYS 11-15 (NOVEMBER 25-29)
Thanksgiving Week may start with a coastal storm threat but it’s too far away to even start talking about any details. It could just as easily end up too far south for any impact. The remainder of the week looks like it will be back in a westerly air flow pattern with passing minor systems 1 or 2 times, but largely dry weather. There will be plenty of fine-tuning ahead as this is an important travel time.

Thursday Forecast

7:25AM

DAYS 1-5 (NOVEMBER 14-18)
The high pressure area that brought a batch of mid winter feeling air here is on its way out and as it starts to warm both at the surface and aloft we’ll see more cloudiness today. The should be a largely precipitation-free process except the risk of some rain showers in east coastal MA and especially Cape Cod tonight. This leads to a milder Friday as a westerly air flow takes over, but a cold front coming through, also generally absent of precipitation, on Friday evening will introduce another blast of colder air for Saturday, although this one will not be to the magnitude of the one just leaving us. Saturday’s chilly blast will come along with a gusty breeze as high pressure builds across southeastern Canada. This high will sit up there on Sunday as low pressure organizes off the Mid Atlantic Coast, a low we’ll have to keep an eye on just beyond this forecast period. However it should already be spreading some high level clouds across the sky…
Forecast details…
TODAY: Early sun, then mostly cloudy. Highs 37-44. Wind SW to S up to 10 MPH.
TONIGHT: Mostly cloudy. A rain shower possible eastern MA especially Cape Cod. Lows 32-37. Wind S up to 10 MPH.
FRIDAY: Early clouds, then mostly sunny. Highs 43-50. Wind W increasing to 10-20 MPH.
FRIDAY NIGHT: Clearing. Lows 22-30. Wind NW 10-20 MPH.
SATURDAY: Mostly sunny. Highs 33-40. Wind NW 10-20 MPH.
SATURDAY NIGHT: Clear. Lows 15-22 interior valleys, 22-29 elsewhere. Wind N under 10 MPH.
SUNDAY: Partly sunny. Highs 38-45. Wind NE up to 10 MPH.
SUNDAY NIGHT: Mostly cloudy. Lows 30-37. Wind NE 5-15 MPH except 15-25 MPH Cape Cod.
MONDAY: Cloudy. Periods of rain possible. Highs 38-45. Wind NE 10-20 MPH except 15-30 MPH South Coast, higher gusts possible.

DAYS 6-10 (NOVEMBER 19-23)
Additional low pressure offshore through November 20 may result in more unsettled weather, mainly rain at times though a mix possible interior higher elevations. A more westerly flow takes over November 21-23 with a trough passage due around November 22 that may produce some rain and/or snow showers. Temperatures not too far from normal.

DAYS 11-15 (NOVEMBER 24-28)
May have to watch for one more system offshore with a precipitation threat around November 25 but not a high confidence forecast. Should be back to westerly flow mid to late period with brief rain/snow shower threats otherwise mostly dry.

Wednesday Forecast

7:18AM

DAYS 1-5 (NOVEMBER 13-17)
Cold air more like mid winter is here for a brief but stinging stay today, with wind making it feel even colder than the actual air temperature. Boston should break a long-standing record set in 1874 (36) for the coldest high temperature for the day (forecasting a 33). Bundle up if you’ll be outside! The bubble of arctic high pressure that brought this air to us will slide offshore by Thursday, and gradually warming air will bring more cloudiness and perhaps a snow or rain shower by evening but not looking for much out of that threat. This will hang on until early Friday and then a westerly air flow will increase as a moisture-starved trough approaches and passes, clearing it out. A cold front will pass later and bring in another brief shot of colder air for Saturday before a slight moderation takes place Sunday with high pressure in control. However this high will give way somewhat to low pressure to the south later Sunday allowing some increased cloudiness. I don’t expect that low pressure area to move too quickly or too far north to spoil the end of the weekend.
Forecast details…
TODAY: Mostly sunny. Highs 25-32 except 33-38 Cape Cod. Wind NW 15-25 MPH, higher gusts. Wind chill frequently below 20.
TONIGHT: Clear. Lows 15-22 except 23-28 Cape Cod. Wind W 5-15 MPH, diminishing.
THURSDAY: Variably cloudy – most sun morning. Highs 37-44. Wind W up to 10 MPH shifting to S.
THURSDAY NIGHT: Mostly cloudy. A rain or snow shower possible. Lows 32-37. Wind S up to 10 MPH.
FRIDAY: Variably cloudy – most sun afternoon. Highs 43-50. Wind S up to 10 MPH, shifting to W 10-20 MPH.
FRIDAY NIGHT: Clearing. Lows 22-30. Wind NW 10-20 MPH.
SATURDAY: Mostly sunny. Highs 33-40. Wind NW 10-20 MPH.
SATURDAY NIGHT: Clear. Lows 15-22 interior valleys, 22-29 elsewhere. Wind N under 10 MPH.
SUNDAY: Partly sunny. Highs 37-44. Wind NE up to 10 MPH.

DAYS 6-10 (NOVEMBER 18-22)
Watching low pressure to the south in the November 18-21 period, likely 2 centers, either of which can impact the region with at least clouds and a gusty breeze, but may be close enough for precipitation (favoring rain). By the end of the period a dry westerly air flow should be back.

DAYS 11-15 (NOVEMBER 23-27)
A zonal (west to east) flow pattern with up and down temperatures, averaging near to slightly above normal overall, and a couple rain shower threats, the greater one toward the end of the period.

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