1:44AM

DAYS 1-5 (DECEMBER 8-12)
A cold weekend for southeastern New England with the only precipitation threat being scattered snow showers from a passing trough this evening. A broad low pressure area will pass well south of New England Monday but as it strengthens and turns northeastward in the western Atlantic it will help pull another batch of cold air out of eastern Canada. By Wednesday, warmer air will be trying to move in aloft while the surface is still cold. This will result in at least cloudiness and possibly some very light snow. In addition, surface winds will turn onshore, and some ocean moisture may add snow showers to eastern areas.
Forecast details…
TODAY: Sunny through early afternoon then partly cloudy. Highs 24-31. Wind NW 5-15 MPH.
TONIGHT: Partly cloudy with scattered snow showers evening then clear overnight. Lows 8-14 except 15-20 urban areas. Wind N under 10 MPH.
SUNDAY: Sunny. Highs 30-36. Wind W up to 10 MPH.
SUNDAY NIGHT: Clear. Lows 15-22. Wind light W.
MONDAY: Sunny. Highs 34-40. Wind W up to 10 MPH.
TUESDAY: Sunny. Lows in the 10s. Highs from the middle 20s to lower 30s.
WEDNESDAY: Mostly cloudy. Spotty very light snow possible interior especially higher elevations, and scattered snow showers in the eastern coastal plain. Lows in the 20s. Highs from the middle 30s to lower 40s.

DAYS 6-10 (DECEMBER 13-17)
Milder air becomes more established December 13-14 with some cloudiness and passing rain showers possible each of these days, then a larger storms system brings rain/wind to the region December 15 then lingering rain/mix/snow showers December 16 as the low center crosses the region. Upper level low pressure may bring a few snow showers as it turns slightly colder December 17.

DAYS 11-15 (DECEMBER 18-22)
A transitional pattern with high pressure aloft dominant but moving eastward and then may become strongest in east central Canada while a trough of low pressure undercuts it. This pattern would start mild and trend colder and also be somewhat unsettled with possible episodes of rain/snow. It’s far too soon to know any details in terms of timing and what type of precipitation will occur where and when.

6:23AM

DAYS 1-5 (DECEMBER 7-11)
A surge of modified arctic air arrives today and lasts into the weekend, moderating slightly Monday only to be reinforced again Tuesday. From the end of the weekend to early next week, broad low pressure will pass safely out to sea south of New England.
Forecast details…
TODAY: Mostly sunny. Highs 33-40. Wind NW 10-20 MPH with higher gusts.
TONIGHT: Clear. Lows 10-16 except 17-22 urban centers. Wind NW 5-15 MPH, higher gusts early.
SATURDAY: Sunny. Highs 24-31. Wind NW 5-15 MPH.
SATURDAY NIGHT: Clear. Lows 8-14 except 15-20 urban areas. Wind N under 10 MPH.
SUNDAY: Sunny. Highs 30-36. Wind W up to 10 MPH.
MONDAY: Sunny. Lows from the middle 10s to lower 20s. Highs from the middle 30s to near 40.
TUESDAY: Sunny. Lows in the 10s. Highs from the middle 20s to lower 30s.

DAYS 6-10 (DECEMBER 12-16)
Clouds arrive with a slight risk of light snow/mix later December 12 as warmer air advances toward the region. Milder with a few rain showers possible December 13. A stronger storm system possible, likely rain, during the December 14-15 period as the weather pattern at that time would have a ridge of high pressure to the east of New England and a storm track through the Great Lakes, sending temperatures to above normal levels. Rain/snow showers possible with upper level low pressure crossing the region December 16.

DAYS 11-15 (DECEMBER 17-21)
Turning colder with snow showers possible to start this period. Temperatures moderating to near to above normal with mainly dry weather for the remainder of the period.

7:33AM

DAYS 1-5 (DECEMBER 6-10)
Cold and dry is the theme of this period with the only event of any note being a reinforcing cold front moving through tonight which may produce some snow showers. With more confidence I can now say that a storm we were watching for early next week will pass well south of this area.
Forecast details…
TODAY: Sunny start, clouds arrive later. Highs 35-42. Wind W up to 15 MPH.
TONIGHT: Variably cloudy. Scattered snow showers. Lows 25-32. Wind 10-15 MPH shifting to NW with higher gusts.
FRIDAY: Mostly sunny. Highs 33-40. Wind NW 10-20 MPH with higher gusts.
FRIDAY NIGHT: Clear. Lows 10-16 except 17-22 urban centers. Wind NW 5-15 MPH, higher gusts early.
SATURDAY: Sunny. Highs 24-31. Wind NW 5-15 MPH.
SUNDAY: Sunny. Lows in the 10s, coldest away from urban location. Highs in the 30s.
MONDAY: Sunny. Lows from the middle 10s to lower 20s. Highs from the middle 30s to lower 40s.

DAYS 6-10 (DECEMBER 11-15)
Dry/cold December 11. Clouds arrive with a slight risk of light snow/mix later December 12 as warmer air advances toward the region. Milder with a few rain showers possible December 13. A stronger storm system possible, likely rain, during the December 14-15 period as the weather pattern at that time would have a ridge of high pressure to the east of New England and a storm track through the Great Lakes, sending temperatures to above normal levels.

DAYS 11-15 (DECEMBER 16-20)
Turning colder with snow showers possible to start this period. Confidence lower thereafter as temperatures probably start seasonably chilly then moderate slightly while not ruling out 1 or 2 passing systems with some precipitation.

2:00AM

DAYS 1-5 (DECEMBER 5-9)
High pressure will bring chilly and dry weather to the region for the next few days but the air flow between it and low pressure passing well south of New England will be enough to help develop a few snow showers in some east coastal areas later today and this evening. A fast-moving cold front will cross the region between late Thursday and early Friday, reinforcing the cold air for the weekend as another high pressure area moves in.
Forecast details…
TODAY: Sun filtered through high cloudiness, also coastal lower clouds move in with a slight risk of isolated light snow showers, mainly Cape Cod this afternoon. Highs 32-38. Wind light N shifting to NE then back to N.
TONIGHT: Partly cloudy. Chance of light snow showers MA South Shore early evening, and Cape Cod again late eveningLows 15-22. Wind light NW to W.
THURSDAY: Mostly sunny morning. Partly sunny afternoon. Highs 34-40. Wind SW 5-15 MPH.
THURSDAY NIGHT: Variably cloudy. Scattered snow showers. Lows 18-25. Wind SW 5-15 MPH shifting to NW 10-20 MPH with higher gusts.
FRIDAY: Partly sunny. Scattered snow showers in the morning. Highs 30-36. Wind NW 10-20 MPH with higher gusts.
SATURDAY: Mostly sunny. Lows in the 10s. Highs from the upper 20s to middle 30s.
SUNDAY: Mostly sunny. Lows in the 10s. Highs in the 30s.

DAYS 6-10 (DECEMBER 10-14)
A broad low pressure area passing south of the region December 10-11 should be close enough to bring mix/snow to at least the South Coast and possibly far enough north to impact more of the region with the potential for accumulating snow – will watch and fine tune. Advancing milder air will bring cloudiness back and some light precipitation later December 12 into December 13 followed by a fair and milder end to the period.

DAYS 11-15 (DECEMBER 15-19)
This period likely starts mild as a high pressure ridges transits across the eastern US including the Northeast, then a turn back to more seasonable chill may be preceded by brief wet weather around December 18-19.

7:19AM

DAYS 1-5 (DECEMBER 4-8)
High pressure will bring chilly and dry weather to the region for the next few days. A fast-moving cold front will cross the region between late Thursday and early Friday, reinforcing the cold air for the end of the week.
Forecast details…
TODAY: Sunny. Temperatures steady in the 30s. Wind NW 10-20 MPH, higher gusts, diminishing late.
TONIGHT: Clear evening, high clouds arrive overnight. Lows 18-25. Wind N under 10 MPH.
WEDNESDAY: Sun filtered through high cloudiness. Highs 32-38. Wind light N becoming light variable.
WEDNESDAY NIGHT: Partly cloudy. Lows 15-22. Wind light W.
THURSDAY: Mostly sunny. Clouds and scattered snow showers arrive evening. Highs 34-40. Wind SW 5-15 MPH.
FRIDAY: Partly sunny. Scattered snow showers. Lows from the upper 10s to lower 20s. Highs in the 30s.
SATURDAY: Mostly sunny. Lows in the 10s. Highs from the upper 20s to middle 30s.

DAYS 6-10 (DECEMBER 9-13)
Dry, cold December 9. Will watch a storm passing south of the region December 10-11 in case it ends up far enough north to bring snow/mix to the region. Fair, moderating temperatures later in the period but some cloudiness may arrive with the moderation.

DAYS 11-15 (DECEMBER 14-18)
Mild temperatures for the first couple days with some wet weather possible prior to the return of a more seasonable December chill.

6:44AM

DAYS 1-5 (DECEMBER 3-7)
The transitional pattern is ahead of schedule and nearly complete and the expected turn to a predominately colder/drier pattern arrives this week, but not before a start to the week that will hold both a reminder of recent weather, as the early hours of Monday are damp and grey, and a brief treat as the day turns out quite nice before the cold front arrives that introduces the feel of the upcoming pattern. After this, the polar jet stream becomes the dominant steering influence for systems impacting southeastern New England weather this week, keeping a southern jet stream system well to the south at midweek. Our precipitation threats will be minimal this week, being in the form of patchy drizzle to start today, a possible rain shower a couple times during today, and possible snow showers with a late-week trough. Forecast details…
TODAY: Cloudy with areas of fog and drizzle as well as isolated rain showers into mid morning then a sun/cloud mix with a passing rain shower possible late morning on. Highs 49-56. Wind light variable early, then SW 5-15 MPH.
TONIGHT: Partly to mostly cloudy with a passing rain shower coastal areas and rain or snow shower interior, then clearing before dawn. Temperatures fall to the 30s. Wind SW 10-20 MPH, higher gusts, shifting to NW.
TUESDAY: Sunny. Temperatures steady in the 30s. Wind NW 10-20 MPH, higher gusts, diminishing late.
TUESDAY NIGHT: Clear evening, high clouds arrive overnight. Lows 18-25. Wind N under 10 MPH.
WEDNESDAY: Sun filtered through high cloudiness. Highs 34-41. Wind light N becoming light variable.
THURSDAY: Mostly sunny. Lows in the 10s. Highs in the 30s.
FRIDAY: Partly sunny. Scattered snow showers. Lows from the upper 10s to lower 20s. Highs in the 30s.

DAYS 6-10 (DECEMBER 8-12)
Fair/cold weekend of December 8-9. Will watch a storm passing south of the region December 10 in case it ends up far enough north to bring snow/mix to the region. Fair, chilly December 11-12 though clouds may return to end the period.

DAYS 11-15 (DECEMBER 13-17)
A milder trend expected for much of this period with dry weather for a lot of it, then some wet weather may occur just before a flip back to colder weather at the end of the period.

8:06AM

DAYS 1-5 (DECEMBER 2-6)
Elongated low pressure from the Great Lakes across New England and beyond into the Canadian Maritimes will send a warm front northward through the region today. A large area of rain will cross the region this morning, moving out at midday, leaving a few rain showers behind, but perhaps some lingering drizzle and fog north of the frontal boundary, which will lift northward allowing the mild air into all areas this evening into Monday before a cold front brings a new chilly air mass into the region Tuesday through midweek. During this time, energy will pass south of the region, not allowing what looked like a possible snow threat to materialize. Some upper level energy may cause a few snow showers to develop Wednesday in a slightly unstable atmosphere.
Forecast details…
TODAY: Overcast through early afternoon with rain and areas of fog, but rain tapering off early afternoon rapidly from west to east. Cloudy southern NH and northern MA with patchy drizzle and a chance of rain showers remainder of day while southern MA, eastern CT, and RI are mostly cloudy with a slight risk of rain showers. Highs 42-48 north, 48-55 south. Wind E shifting to N 5-15 MPH in northern areas, SE shifting to SW 10-20 MPH in southern areas.
TONIGHT: Breaking clouds. Lows 40-46. Wind SW 5-15 MPH.
MONDAY: Partly cloudy. Highs 52-58. Wind SW 5-15 MPH, higher gusts.
MONDAY NIGHT: Variably cloudy. Risk of a passing rain shower. Temperatures fall to the 40s. Wind SW 10-20 MPH, shifting to NW late.
TUESDAY: Mostly sunny. Temperatures fall from the 40s to the 30s. Wind NW 10-20 MPH, higher gusts.
WEDNESDAY: Partly sunny. Risk of snow showers. Lows in the 20s. Highs in the 30s.
THURSDAY: Mostly sunny. Lows in the 20s. Highs in the 30s.

DAYS 6-10 (DECEMBER 7-11)
A disturbance brings a risk of snow showers December 7. Timing of next threat looks a little later so fair weather expected December 8-9 with snow/mix threat later December 10 to early December 11 as a system passes near or south of the region. Temperatures below normal.

DAYS 11-15 (DECEMBER 12-16)
Mid month moderation in temperature may come with initial unsettled weather then fair weather to follow.

9:57AM

DAYS 1-5 (DECEMBER 1-5)
And so this is December. Welcome to the 12th month of the calendar year, or the 1st month of Meteorological Winter. What will the first 5 days be like? Read on… The month begins with a tranquil day, light wind, not too cold but a seasonable chill in the air as a small area of high pressure starts overhead then slides away to the east. A broad low pressure area will be moving into the Great Lakes region and stretching out north of the region as its elongating center eventually redevelops across the Canadian Maritimes by Monday. The morphing of this system will send a warm front into the region tonight and Sunday with a period of rain except possibly starting as snow/sleet in interior northern MA and southern NH. But most of the upper level support for steadiest rain will be offshore by early afternoon Sunday, so the morning hours will be wettest. South of the surface boundary will be warmest during the day, and that boundary may hang in the region just north of the Mass Pike for a good portion of the midday and afternoon without making much more progress, so this makes the temperature forecast a little bit of a challenge for areas closest to the boundary. The boundary gets a northward kick Sunday evening when areas to the north may reach their warmest readings of the day and this mild air hangs around Monday before a trough line, remaining from the old stretched out low, and a cold front come southeastward across the region. This will return colder air to the region by Tuesday and Wednesday, a period of time we have been watching for a potential precipitation threat. Most reliable indicators show the bulk of this system passing too far south of the region for any significant impact, but there may be enough upper level energy coming across the region for snow showers Wednesday. At 5 days out this is not a super high confidence forecast but will add the chance in for now and tweak as needed.
Forecast details…
TODAY: Mostly to partly sunny. Highs 36-43. Wind light variable to SE.
TONIGHT: Becoming cloudy. Rain arriving west to east late night probably starting as sleet/snow with a possible coating interior northern MA through southern NH, and possible brief freezing rain higher elevations north central MA to southwestern NH. Lows 30-36. Wind light E.
SUNDAY: Overcast through early afternoon with rain and areas of fog, but rain tapering off early afternoon rapidly from west to east. Cloudy southern NH and northern MA with patchy drizzle and a chance of rain showers remainder of day while southern MA, eastern CT, and RI are mostly cloudy with a slight risk of rain showers. Highs 42-48 north, 48-55 south. Wind E shifting to N 5-15 MPH in northern areas, SE shifting to SW 10-20 MPH in southern areas.
SUNDAY NIGHT: Breaking clouds. Lows 35-42. Wind W 5-15 MPH, higher gusts.
MONDAY: Partly cloudy. Risk of a passing rain shower afternoon or evening. Highs 46-53. Wind W 10-20 MPH, higher gusts.
TUESDAY: Sun to clouds. Risk of brief very light snow at night. Temperatures fall to the 30s day and into the 20s night.
WEDNESDAY: Clouds to sun. Risk of snow showers. Lows in the 20s. Highs in the 30s.

DAYS 6-10 (DECEMBER 6-10)
Fair, cold December 6. Disturbance brings snow shower risk December 7. Watching for potential snow/mix threat late December 8 into December 9. Fair, cold December 10.

DAYS 11-15 (DECEMBER 11-15)
Overall pattern drier, but minor systems may bring brief precipitation. Temperatures near to below normal.

7:40AM

DAYS 1-5 (NOVEMBER 29-DECEMBER 3)
Making no changes today. Tranquil day today with a small area of high pressure overhead but clouds will roll in ahead of a weakening disturbance which, moving right along, may bring a touch of light snow/rain to parts of the region tonight before departing early Saturday. Most places will see nothing from it. Broad low pressure will move in Saturday night into Sunday, bringing milder air and a period of rain. A surface boundary will likely set up somewhere near or north of the Mass Pike, south of which will be the mildest air during the day. This boundary may lift a little north during the night into early Monday before a stronger cold front arrives Monday night to bring colder air back by Tuesday. At that time we will already be watching the approach of another low pressure area from the southwest that previously has been talked about as a snow threat, and still is, but not a great threat as far as we can see with any confidence. Although it remains something to watch.
Forecast details…
TODAY: Sun gives way to clouds. Highs 38-45. Wind light variable.
TONIGHT: Mostly cloudy. Brief very light rain and/or snow possible. Lows 30-36. Wind light variable.
SATURDAY: Partly sunny. Highs 38-45. Wind light SE.
SATURDAY NIGHT: Cloudy. Rain arriving late from west to east, may start as a mix with some snow and/or sleet higher elevations north central MA and southwestern NH. Lows 32-38. Wind E 5-15 MPH.
SUNDAY: Overcast with rain, drizzle, areas of fog morning. Cloudy with areas of drizzle and chance of a rain shower southern NH and northern MA, mostly cloudy with a slight risk of a rain shower southern MA, eastern CT, and RI afternoon. Highs 42-48 southern NH and northern MA, 48-55 southern MA, eastern CT, and RI. Wind light variable northern areas, south to southwest 10-20 MPH southern areas.
MONDAY: Partly sunny. Risk of a passing rain or snow shower evening. Lows from the upper 30s to middle 40s. Highs from the upper 40s to middle 40s.
TUESDAY: Partly to mostly cloudy. Slight risk of snow late. Temperatures fall to the 30s.

DAYS 6-10 (DECEMBER 5-9)
Potential snow December 5 but system may pass largely south of the region. Watching for a disturbance that may bring snow showers late December 6 into December 7 otherwise mainly dry. Another system may threaten with snow/mix later December 8 into December 9 but highly uncertain. Temperatures below normal for the period.

DAYS 11-15 (DECEMBER 10-14)
Still expecting the majority of the subtropical jet stream energy to remain to the south with minor systems in the polar jet stream bringing light precipitation threats and keeping temperatures near to mostly below normal.

8:27AM

DAYS 1-5 (NOVEMBER 29-DECEMBER 3)
No changes to thoughts on upcoming weather. Gusty breeze and a chill today between departing low pressure and approaching high pressure, then more tranquil with high pressure overhead Friday. Weak disturbance may bring spotty very light rain/snow first thing Saturday, probably pre-dawn if at all, but basically a dry day. Broad low pressure approaches and will bring milder air and rain into the region Saturday night into Sunday morning, but this system will be weakening as it passes through. Drier air returns by Monday but not that cold. We’ll have to wait for a cold front to deliver colder air and that is not due to arrive until evening.
Forecast details…
TODAY: Mostly sunny. Highs 35-42. Wind NW 10-20 MPH, higher gusts.
TONIGHT: Mostly clear. Lows 18-25. Wind NW 5-15 MPH, higher gusts.
FRIDAY: Partly cloudy. Highs 38-45. Wind light variable.
FRIDAY NIGHT: Mostly cloudy. Brief very light rain and/or snow possible overnight. Lows 30-36. Wind light SW.
SATURDAY: Mostly cloudy. Rain arriving at night. Highs 38-45. Wind light SE.
SUNDAY: Mostly cloudy. Rain likely morning. Slight chance of a rain shower afternoon. Lows from the upper 30s to lower 40s. Highs from the upper 40s to middle 50s.
MONDAY: Partly sunny. Risk of a passing rain or snow shower evening. Lows in the 30s. Highs in the 40s.

DAYS 6-10 (DECEMBER 4-8)
Will have to watch arrival of colder air timed with a wave of low pressure that can bring snow/mix/rain December 4-5 with timing and details to be sorted out in the days ahead. Drier weather follows for December 6-7 with the next precipitation threat around December 8. Temperatures near to below normal.

DAYS 11-15 (DECEMBER 9-13)
Transitional pattern, active with amount of systems but generally not expecting major storms as the polar jet tries to become dominant and the subtropical jet trends more southward. Still risks of unsettled weather a few times with timing uncertain this far in advance.

8:58AM

DAYS 1-5 (NOVEMBER 28-DECEMBER 2)
Upper level low pressure crosses the region today, and while not a stormy day, it will be slightly unsettled with a lot of cloudiness and a few rain/snow showers possible. This low departs and a broad northwesterly flow between it and approaching high pressure will bring blustery and chilly weather to the region Thursday, but it will be a dry day, as Friday will be, but more tranquil as high pressure moves over the region. A weakening disturbance may bring brief light rain/snow Saturday, a cloud-dominated day as there will be little break between that system and an approaching larger one from the southwest that will combine with milder air to bring yet another round of rain to the region Saturday night into Sunday. However this system carries much less potential for heavy rainfall as it will be weakening and losing support during its transit across the Northeast.
Forecast details…
TODAY: Partly sunny to mostly cloudy. Chance of passing rain and snow showers. Highs 35-42. Wind NW 10-20 MPH, higher gusts.
TONIGHT: Gradual clearing. Lows 22-28. Wind NW 10-20 MPH, higher gusts.
THURSDAY: Mostly sunny. Highs 35-42. Wind NW 10-20 MPH, higher gusts.
THURSDAY NIGHT: Mostly clear. Lows 18-25. Wind NW 5-15 MPH, higher gusts.
FRIDAY: Partly cloudy. Highs 38-45. Wind light variable.
SATURDAY: Mostly cloudy. Brief light rain/mix/snow possible early. Dry most of daylight and early evening. Rain arriving by late night. Lows in the 30s. Highs in the 40s.
SUNDAY: Mostly cloudy. Rain likely morning. Slight chance of a rain shower afternoon. Lows from the upper 30s to lower 40s. Highs from the upper 40s to middle 50s.

DAYS 6-10 (DECEMBER 3-7)
Fair, breezy, slightly colder December 3. Next precipitation threat is from a system passing near or south of the region later December 4 through December 5 and this system has a better chance of having snow involved with it should it be far enough north for impact. Fair, colder weather to end the period.

DAYS 11-15 (DECEMBER 8-12)
There is uncertainty in timing of systems, but the overall pattern is transitional between the active southern jet stream dominated pattern we’ve been in to one with less southern jet stream involvement and more polar jet stream domination. These transitions can still be rather unsettled and there will be threats to monitor about every other day.

7:27AM

DAYS 1-5 (NOVEMBER 27-DECEMBER 1)
The storm that has been on my “radar” for 2 weeks finally departs today, slowly, kind of. As it lifts to the north and the old primary low elongates as the secondary pulls away toward the Canadian Maritimes, it will set up a broad westerly flow across the region with a slow drying-out process getting underway during the course of the day, though it won’t seem like that at first, starting out with low pressure overhead and plenty of low level moisture. But by this evening, you’ll notice the change, and this will continue through Wednesday, which will still be somewhat unsettled as a broad upper level low pressure area still has to transit the region from west to east, and with colder air incoming, this will result in a few rain and snow showers. We will have 2 fully dry calendar days Thursday and Friday, the first with a gusty northwesterly breeze between broad low pressure to the east and high pressure building in from the west, the second more tranquil with high pressure overhead. A weakening disturbance will be crossing the region early Saturday and may produce brief light rain and/or snow. As much as I’d like to tell you we’re done with the series of storms, we’re not, and another will approach later Saturday, spreading clouds right back into the region.
Forecast details…
TODAY: Cloudy morning with areas of drizzle/fog seacoast NH, eastern MA, RI, and eastern CT while showers of rain and higher elevation snow occur central MA to interior southern NH with minor snow accumulation possible in Worcester Hills of north central MA and Monadnocks of NH. Mostly cloudy afternoon with a slight chance of a passing rain/mix shower. Temperatures start the day 34-40 interior higher elevations, 41-47 elsewhere, and very gradually fall. Wind E 5-15 MPH eastern coastal areas, light variable elsewhere through mid morning, then becoming W all areas and increasing to 10-20 MPH with higher gusts during the afternoon.
TONIGHT: Variably cloudy. Chance of a passing light snow shower. Lows 26-32. Wind WNW 10-20 MPH, higher gusts.
WEDNESDAY: Partly sunny. Chance of passing rain and snow showers. Highs 35-42. Wind NW 10-20 MPH, higher gusts.
WEDNESDAY NIGHT: Clearing. Lows 22-28. Wind NW 10-20 MPH, higher gusts.
THURSDAY: Mostly sunny. Highs 35-42. Wind NW 10-20 MPH, higher gusts.
FRIDAY: Partly cloudy. Lows in the 20s. Highs from the upper 30s to middle 40s.
SATURDAY: Mostly cloudy. Brief light rain/mix/snow possible early. Rain arriving by late night. Dry most of daytime. Lows in the 30s. Highs in the 40s.

DAYS 6-10 (DECEMBER 2-6)
Transitional pattern. December 2 sees rain to start, drying to end. A break December 3. Next system brings rain and/or snow later December 4 into December 5, with colder air coming in during and after its passage.

DAYS 11-15 (DECEMBER 7-11)
Overall colder pattern becomes established as we head into a polar jet stream dominated set-up but cannot rule out at least some moisture from the subtropical jet still becoming involved with a passing northern system. While the overall trend is toward drier, as in less southern jet stream storminess impacting the region, it’s still an active pattern for the polar jet with colder air and so the chance of minor but colder systems increases.

9:19AM

DAYS 1-5 (NOVEMBER 26-30)
The final 5 days of November will follow a pattern we’ve seen for a good part of this autumn, and this is made clear right away by the next in a series of storms, which will be arriving in an already drizzle-saturated region as plenty of low level moisture is already in place. There are even clusters of essentially ocean-effect rainfall moving in from the east southeast this morning that will be around prior to the storm’s rainfall arriving later. The storm system will bring a solid rainfall to the region later today through most of tonight, with the rain exiting around dawn Tuesday. This is the long-talked-about “Colorado low” that was first mentioned on the blog back on November 12, and seems to be keeping its promise to visit us on its scheduled date of November 26. Tuesday and Wednesday will be unsettled days but will be more cloud dominated than anything else, with just some scattered rain showers Tuesday and snow showers Wednesday as both the surface and air above turn colder during the passage of an upper level low pressure area. Between that departing low and approaching high pressure expect a dry, chilly, blustery Thursday and a more tranquil Friday as the high pressure area moves overhead during the course of the day.
Forecast details…
MONDAY: Overcast. Areas of fog. Drizzle likely. Scattered rain through early afternoon. Steadier rain arriving later in the afternoon. Highs 40-46. Wind E 5-15 MPH except 15-25 MPH South Coast.
TONIGHT: Cloudy. Rain, heavy at times, tapering off toward dawn. Areas of fog. Lows 36-41 interior MA and southern NH, holding steady 40-46 or even rising slightly to the south. Wind E to NE 15-25 MPH southern NH and northern MA, SE to SW 15-25 MPH with higher gusts eastern CT, RI, and southeastern MA. Wind gusts may reach or exceed 40 MPH at times.
TUESDAY: Cloudy start with lingering rain showers early, then variably cloudy with passing brief rain showers possible. Highs 42-48 morning, gradually cooling back to the 30s afternoon. Wind variable 5-15 MPH southern NH and northern MA, SW to W 5-15 MPH with higher gusts in areas to the S, then W increasing to 10-20 MPH with higher gusts all areas afternoon.
TUESDAY NIGHT: Variably cloudy. Chance of a passing light snow shower. Lows 26-32. Wind WNW 10-20 MPH, higher gusts.
WEDNESDAY: Partly sunny. Chance of snow showers. Highs 35-42. Wind NW 10-20 MPH, higher gusts.
THURSDAY: Mostly sunny. Windy. Lows in the 20s. Highs from the middle 30s to lower 40s.
FRIDAY: Partly cloudy. Diminishing wind. Lows in the 20s. Highs from the upper 30s to middle 40s.

DAYS 6-10 (DECEMBER 1-5)
Transitional pattern as December begins. Weakening small low pressure system brings clouds and perhaps some light precipitation early Saturday December 1. Larger low pressure area approaches the region Sunday December 2 with overcast and eventual rainfall. Current timing suggest drier weather December 3 and also a little colder. Next low pressure area comes along December 4 into December 5 with a period of rain/mix/snow possible. Too early to determine details but snow becomes more likely for a larger portion of the region with colder air. Will monitor.

DAYS 11-15 (DECEMBER 6-10)
Overall colder pattern becomes established as we head into a polar jet stream dominated set-up but cannot rule out at least some moisture from the subtropical jet still becoming involved with a passing northern system. While the overall trend is toward drier, as in less southern jet stream storminess impacting the region, it’s still an active pattern for the polar jet with colder air and so the chance of minor but colder systems increases.

7:59AM

DAYS 1-5 (NOVEMBER 25-29)
The first of 2 wet weather systems is ongoing but will gradually loosen its grip on the region today as steady rain winds down, some drizzle lingers, and eventually drier air takes over as the low center departs to the southeast and east of New England. The second system will follow a similar track to the first, maybe a bit further north, bringing more wet weather into the region by Monday afternoon/night. As this system departs Tuesday, a drying process will take place but a few rain showers may linger, and these showers may linger into Wednesday but in the form of snow showers as a cold upper level low pressure area swings across the region. A drier northwesterly air flow will take over by Thursday. Forecast details…
TODAY: Cloudy. Patchy fog. Rain ending by mid morning. Areas of drizzle and perhaps an isolated rain shower through midday. Highs 41-47. Wind N 5-15 MPH except 15-25 MPH with higher gusts Cape Cod in the morning.
TONIGHT: Cloudy. Lows 37-43. Wind W 5-15 MPH early, light variable, then light E before dawn.
MONDAY: Cloudy. Rain likely by afternoon. Areas of fog. Highs 40-46. Wind E 5-15 MPH except 15-25 MPH South Coast.
MONDAY NIGHT: Cloudy. Rain likely. Areas of fog. Lows 36-41 interior MA and southern NH, holding steady 40-46 or even rising slightly to the south. Wind E to NE 10-20 MPH southern NH and northern MA, SE to SW 10-20 MPH with higher gusts eastern CT, RI, and southeastern MA.
TUESDAY: Cloudy start with lingering rain showers early, then variably cloudy with passing rain showers possible. Highs 42-48 morning, gradually cooling back to the 30s afternoon. Wind variable 5-15 MPH southern NH and northern MA, SW to W 5-15 MPH with higher gusts in areas to the S, then W increasing to 10-20 MPH with higher gusts all areas afternoon.
WEDNESDAY: Partly sunny. Windy. Chance of snow showers. Lows from the middle 20s to lower 30s. Highs from the middle 30s to lower 40s.
THURSDAY: Mostly sunny. Windy. Lows in the 20s. Highs from the middle 30s to lower 40s.

DAYS 6-10 (NOVEMBER 30-DECEMBER 4)
Transitional pattern during this period so a little lower on confidence with time. Chilly northwest flow may contain a disturbance with snow showers November 30. High pressure with dry weather December 1. Advancing low pressure from west may bring wet weather (favoring rain) later December 2 to early December 4.

DAYS 11-15 (DECEMBER 5-9)
Colder weather during this period, a few snow shower threats would be most likely from disturbances in the polar jet stream with less of a chance of any moisture from the subtropical jet stream reaching the region, although can’t rule that out as sometimes medium range guidance does not see them this far in advance and that stream will still be somewhat active.

7:38AM

DAYS 1-5 (NOVEMBER 24-28)
No big changes today. Two low pressure systems will impact the region, both with mild Pacific air in place resulting in rain instead of anything frozen, despite the monumental chill we’re just recovering from now. Just another example of changing weather. The timing of these systems brings the main rain threats across southeastern New England in the overnight to mid morning hours of Sunday, and the afternoon and nighttime hours of Monday. The second of the two systems will have a very broad circulation as it exits Tuesday, with a gusty westerly wind but still a rain shower risk which then changes to a snow shower risk Wednesday with the help of colder air and an upper level low pressure area. Forecast details…
TODAY: Increasing clouds. Highs 41-47. Wind light SE.
TONIGHT: Cloudy. Rain arrives. Lows 35-42. Wind SE 5-15 MPH except 15-25 MPH Cape Cod.
SUNDAY: Cloudy. Patchy fog. Rain ending by mid morning. Areas of drizzle. Highs 41-47. Wind N 5-15 MPH except 15-25 MPH Cape Cod in the morning.
SUNDAY NIGHT: Cloudy. Lows 37-43. Wind W 5-15 MPH early, light variable, then light E before dawn.
MONDAY: Cloudy. Rain likely by afternoon. Areas of fog. Highs 40-46. Wind E 5-15 MPH except 15-25 MPH South Coast.
TUESDAY: Variably cloudy. Windy. Scattered rain showers day. Isolated snow showers evening. Temperatures fall 40s to 30s.
WEDNESDAY: Partly sunny. Windy. Chance of snow showers. Lows from the middle 20s to lower 30s. Highs from the middle to upper 30s.

DAYS 6-10 (NOVEMBER 29-DECEMBER 3)
A chilly northwesterly air flow and dry weather expected November 29-30. High pressure is expected to dominate with fair weather December 1-2, then milder with a chance of rain showers December 3 as high pressure moves offshore and a trough approaches from the west. This represents slower timing and evolution than was previously indicated and will be part of a pattern readjustment.

DAYS 11-15 (DECEMBER 4-8)
This period may start mild and unsettled with rain showers then a turn to sharply colder air with a risk of a few snow showers, but the overall trend toward mainly dry weather.