8:23AM

DAYS 1-5 (SEPTEMBER 28-OCTOBER 2)
Again the ride is relatively easy, from a forecasting standpoint, with only one rain threat this weekend, from a cold front which will produce some showers tonight. Otherwise, it’s dry, with temperatures starting with a bit of summer feel today, then a more seasonably cool couple days to end September early in the week, and a quick reminder that summer left us not too long ago as we start October with another quick warm shot of air. How long that lasts into the second day of the month will depend on the timing of a cold front dropping southward out of Canada. Right now at several days out I am seeing signs of an “upside down” day, one that starts warm, and ends much cooler. This may need to be tweaked, of course, based on the timing of the front. The other wild card for day 5 is how much rain occurs. Also will need to fine-tune that the next few days.
Forecast details…
TODAY: Mostly sunny. Highs 75-82. Wind SW 5-15 MPH.
TONIGHT: Variably cloudy. A few rain showers possible, any may be briefly heavy. Lows 58-65. Wind W 5-15 MPH, shifting to N overnight.
SUNDAY: Mostly sunny. Highs 68-75. Wind NE 5-15 MPH.
SUNDAY NIGHT: Mostly clear. Lows 48-55. Wind E under 10 MPH.
MONDAY: Mostly sunny. Highs 70-77. Wind SE 5-15 MPH.
MONDAY NIGHT: Mostly clear. Lows 50-57. Wind S up to 10 MPH.
TUESDAY: Mostly sunny. Highs 73-80. Wind SW 10-20 MPH.
TUESDAY NIGHT: Partly cloudy. Lows 55-62. Wind SW 5-15 MPH.
WEDNESDAY: Early sun, then lots of clouds with rain showers arriving. Highs 70-77 early, turning cooler later. Wind W 10-20 MPH shifting to N.

DAYS 6-10 (OCTOBER 3-7)
High pressure in eastern Canada will provide cooler air for this 5-day period, but may be far enough north to allow an area of low pressure to bring a period of rain about October 4. We’ll have to watch for an upper level low to produce a few showers October 5 but otherwise the October 5-6 weekend looks mainly dry, just cool.

DAYS 11-15 (OCTOBER 8-12)
Slower transitions means we come out of the cool spell into a more gradual moderation that lasts much of this period. Also expecting dry weather to be dominant with no strong sign of a turn to a wetter pattern at this point.

7:19AM

DAYS 1-5 (SEPTEMBER 27-OCTOBER 1)
No changes to the forecast. Up and down on the temps, mainly dry with the weather. Only rain threat for this 5-day period is passing showers Saturday night with a cold front crossing the region.
Forecast details…
TODAY: Mostly sunny. Highs 68-75. Wind NW 5-15 MPH.
TONIGHT: Mostly clear. Lows 48-55. Wind W up to 10 MPH.
SATURDAY: Mostly sunny. Highs 75-82. Wind SW 5-15 MPH.
SATURDAY NIGHT: Variably cloudy. A few rain showers possible. Lows 58-65. Wind W 5-15 MPH, shifting to N overnight.
SUNDAY: Mostly sunny. Highs 68-75. Wind NE 5-15 MPH.
SUNDAY NIGHT: Mostly clear. Lows 48-55. Wind E under 10 MPH.
MONDAY: Mostly sunny. Highs 70-77. Wind SE 5-15 MPH.
MONDAY NIGHT: Mostly clear. Lows 50-57. Wind S up to 10 MPH.
TUESDAY: Mostly sunny. Highs 73-80. Wind SW 10-20 MPH.

DAYS 6-10 (OCTOBER 2-6)
Transition day October 2 which starts warm, may get wet for a while, and ends cooler as a cold front drops southward out of Canada. High pressure to the north of the region finally settles over the region later in the period, the balance of which will be dry with near to below normal temperatures.

DAYS 11-15 (OCTOBER 7-11)
The overall pattern will not have changed too much, but may be “slower”, in that it takes this 5 day period for one warm-up, brief shower threat, cool-down cycle.

7:19AM

DAYS 1-5 (SEPTEMBER 26-30)
The final 5 days of September will continue the up and down temperature but mainly dry weather pattern as the only disturbances come in the form of weak fronts passing by this evening and Saturday night, with high pressure in control otherwise.
Forecast details…
TODAY: Sunshine this morning. Clouding up this afternoon with showers arriving west to east late-day. Highs 75-82. Wind SW 5-15 MPH.
TONIGHT: Mostly cloudy evening with showers departing west to east early. Clearing thereafter. Lows 56-63. Wind SW 5-15 MPH shifting to NW.
FRIDAY: Mostly sunny. Highs 68-75. Wind NW 5-15 MPH.
FRIDAY NIGHT: Mostly clear. Lows 48-55. Wind W up to 10 MPH.
SATURDAY: Mostly sunny. Highs 75-82. Wind SW 5-15 MPH.
SATURDAY NIGHT: Variably cloudy. A few rain showers possible. Lows 58-65. Wind W 5-15 MPH, shifting to N overnight.
SUNDAY: Mostly sunny. Highs 68-75. Wind NE 5-15 MPH.
SUNDAY NIGHT: Mostly clear. Lows 48-55. Wind E under 10 MPH.
MONDAY: Mostly sunny. Highs 70-77. Wind SE 5-15 MPH.

DAYS 6-10 (OCTOBER 1-5)
Upper high pressure surges into the Northeast again briefly to start October with more above normal temperatures and mainly dry weather, but a round of showers/thunderstorms later October 2 may be followed by a push of much cooler air around October 3-4 then moderation again by the end of the period as the overall pattern still has not changed much.

DAYS 11-15 (OCTOBER 6-10)
Still somewhat of an up and down temperature pattern and only brief shower threats expected. Canada will be trending colder, not only as it is seasonally what happens but the pattern will support colder air there. This will be watched but so far not seeing solid signs of big pattern changes.

6:59AM

DAYS 1-5 (SEPTEMBER 25-29)
A temperature kiddie coaster will continue with a mainly dry weather pattern, with just weak cold fronts passing by Thursday evening and Saturday night providing the only rain shower threats of the next 5 days. Otherwise, high pressure will retain its overall dominance.
Forecast details…
TODAY: Mostly sunny. Highs 70-77. Wind N 5-15 MPH.
TONIGHT: Mostly clear. Lows 50-57. Wind W up to 10 MPH.
THURSDAY: Partly sunny. Risk of a late-day rain shower mainly north and west of Boston. Highs 75-82. Wind SW 5-15 MPH.
THURSDAY NIGHT: Variably cloudy. Risk of an evening rain shower mainly Boston southeastward. Lows 56-63. Wind SW 5-15 MPH shifting to NW.
FRIDAY: Mostly sunny. Highs 68-75. Wind NW 5-15 MPH.
FRIDAY NIGHT: Mostly clear. Lows 48-55. Wind W up to 10 MPH.
SATURDAY: Mostly sunny. Highs 75-82. Wind SW 5-15 MPH.
SATURDAY NIGHT: Variably cloudy. A few rain showers possible. Lows 58-65. Wind W 5-15 MPH, shifting to N overnight.
SUNDAY: Mostly sunny. Highs 68-75. Wind NE 5-15 MPH.

DAYS 6-10 (SEPTEMBER 30-OCTOBER 4)
Upper high pressure surges into the Northeast again briefly to end September and start October with more above normal temperatures and mainly dry weather, but a round of showers/thunderstorms around October 2 may be followed by a push of much cooler air around October 3-4.

DAYS 11-15 (OCTOBER 5-9)
While a whole sale pattern change will eventually take place it will probably evolve over time and not really be here at this point, so we should warm back up somewhat at least a few of the days of this period with another cool push possible to end it. Still the overall pattern is expected to be drier than average.

7:18AM

DAYS 1-5 (SEPTEMBER 24-28)
Upper level low pressure will cross the region today, and while we won’t feel the summerlike heat of yesterday, it will still be warm at the surface, contrasted with colder air aloft, and that will make it unstable, so clouds will pop up and a few showers/thunderstorms likely result. Not everybody gets them, but brief heavy downpours may occur sometime this afternoon to very early evening. High pressure builds in tonight and Wednesday with tranquil weather, then the high slides offshore and a quick warm-up occurs Thursday, with another cold front possibly bringing a brief shower at night before another high pressure area builds in with slightly cooler weather for Friday. This high, like its predecessor, will move offshore and allow another warm-up for Saturday.
Forecast details…
TODAY: Clouds depart Cape Cod early. Sunshine elsewhere into mid morning then a sun/cloud mix late morning on. Isolated to scattered showers and a slight chance of thunderstorms this afternoon. Highs 73-80. Wind NW 5-15 MPH, higher gusts.
TONIGHT: Clearing. Lows 46-53. Wind N 5-15 MPH.
WEDNESDAY: Mostly sunny. Highs 70-77. Wind N 5-15 MPH.
WEDNESDAY NIGHT: Mostly clear. Lows 50-57. Wind W up to 10 MPH.
THURSDAY: Mostly sunny. Highs 75-82. Wind SW 5-15 MPH.
THURSDAY NIGHT: Variably cloudy. Risk of a passing shower. Lows 56-63. Wind SW 5-15 MPH shifting to NW.
FRIDAY: Mostly sunny. Highs 68-75. Wind NW 5-15 MPH.
FRIDAY NIGHT: Mostly clear. Lows 48-55. Wind W up to 10 MPH.
SATURDAY: Mostly sunny. Highs 75-82. Wind SW 5-15 MPH.

DAYS 6-10 (SEPTEMBER 29-OCTOBER 3)
The upper pattern will see the high pressure ridge, still centered in the Midwest, try to bubble east again, which keeps the overall pattern dry, but again we’ll see some temperature ups and downs, though the tendency for this 5-day period will likely be the warmer side of normal. Some details remain uncertain in terms of wind direction and specific temperatures, which will be fine-tuned.

DAYS 11-15 (OCTOBER 4-8)
The upper ridge is expected to back-up more toward the Plains leaving the Northeast in a more west to east upper level low, but one or two intrusions of much cooler air from Canada are going to be more possible, the timing of which is uncertain at this time. It may become a little more unsettled near the boundary of this chilly air to the north and warmer air still to the south, but it does not look like we’ll be diving into a wet pattern either.

7:01AM

DAYS 1-5 (SEPTEMBER 23-27)
Autumn has arrived, but it will still feel like summer today with a warm, more humid southwesterly air flow ahead of a cold front. This front will cross the region tonight, producing showers and possibly a thunderstorm, then be offshore by dawn Tuesday, a day which will be cooler and drier, but with some passing cloudiness due to a pocket of colder air aloft. These clouds may release a few sprinkles or light showers but these will be the exception and far from the rule. High pressure pushes in with fair and seasonably mild weather Wednesday, then drifts off to the east with a quick warm-up for Thursday, before a weak cold front comes through with hardly any clouds and no rain threat Thursday night, knocking the temperature back to seasonable levels for Friday with more dry weather.
Forecast details…
TODAY: Mostly sunny through mid afternoon. Partly sunny late afternoon. More humid. Highs 75-82 South Coast, 82-89 elsewhere. Wind SW 10-20 MPH.
TONIGHT: Partly to mostly cloudy. Scattered to numerous showers and a slight chance of a thunderstorm west to east mid evening to overnight. Patchy fog. Humid. Lows 60-67. Wind SW 5-15 MPH shifting to NW toward dawn.
TUESDAY: Partly sunny. Slight risk of isolated showers. Highs 68-75. Wind NW 10-20 MPH.
TUESDAY NIGHT: Clearing. Lows 45-52. Wind N 5-15 MPH.
WEDNESDAY: Mostly sunny. Highs 70-77. Wind N 5-15 MPH.
WEDNESDAY NIGHT: Mostly clear. Lows 50-57. Wind W up to 10 MPH.
THURSDAY: Mostly sunny. Highs 73-80. Wind SW 5-15 MPH.
THURSDAY NIGHT: Partly cloudy. Lows 50-57. Wind W 5-15 MPH.
FRIDAY: Mostly sunny. Highs 68-75. Wind NW 5-15 MPH.

DAYS 6-10 (SEPTEMBER 28-OCTOBER 2)
A little flatter flow allows a quick warm-up September 28, a front to pass through late-day or night with maybe a shower, then a slight cool down for September 29. The cycle repeats September 30 with a warm-up then a slight cool-down to begin October as high pressure builds over eastern Canada.

DAYS 11-15 (OCTOBER 3-7)
A quick return to ridging then a flatter flow follows with a strong west to east jet stream keeping systems weak and weather mainly dry. Warmest weather relative to normal will likely be early in the period then more seasonable air follows.

7:24AM

DAYS 1-5 (SEPTEMBER 22-26)
The autumnal equinox, the start of fall, is 4:50AM Monday. This final day of summer and first day of fall will both feel like summer, with a warm southwesterly air flow in place, but stronger Monday, ahead of an approaching cold front. That front may produce a passing shower sometime in the dark hours of Monday night / Tuesday morning, and will replace the summery air with a more seasonably cool batch of air Tuesday-Wednesday before it warms a bit more by Thursday. Upper level low pressure crossing the region Tuesday probably means we’ll see more clouds in the sky than we’ve seen recently, but high pressure should reassert enough control for lots of sunshine by midweek.
Forecast details…
TODAY: Mostly sunny. Highs 79-86. Wind SW 5-15 MPH.
TONIGHT: Mostly clear. Lows 58-65. Wind SW 5-15 MPH.
MONDAY: Mostly sunny. Highs 78-85. Wind SW 10-20 MPH.
MONDAY NIGHT: Variably cloudy. Chance of a passing shower. Lows 60-67. Wind SW 5-15 MPH shifting to NW.
TUESDAY: Partly sunny. Highs 68-75. Wind NW 10-20 MPH.
TUESDAY NIGHT: Clearing. Lows 45-52. Wind N 5-15 MPH.
WEDNESDAY: Mostly sunny. Highs 70-77. Wind N 5-15 MPH.
WEDNESDAY NIGHT: Mostly clear. Lows 50-57. Wind W up to 10 MPH.
THURSDAY: Mostly sunny. Highs 73-80. Wind SW 5-15 MPH.

DAYS 6-10 (SEPTEMBER 27-OCTOBER 1)
Mainly dry, high pressure ridge centered southwest of New England with west to northwest air flow at upper levels and only a couple minor disturbances passing by with minimal shower threats. Temperatures near to above normal, a little variable from today to day depending on where surface high pressure is centered and resultant wind direction.

DAYS 11-15 (OCTOBER 2-6)
No significant change expected, overall dry, variable temperatures but averaging slightly above normal overall.

7:30AM

DAYS 1-5 (SEPTEMBER 21-25)
Same story, high pressure in control, and our warm-up will really be felt this weekend and Monday. Humidity will be low this weekend but will come up somewhat Monday as a stronger southwesterly air flow arrives. High pressure gives way to a cold front that crosses the region in the early hours of Tuesday followed by a small upper level low Tuesday, which will bring cooler air from Canada. High pressure moves back into control by Wednesday but with its center northwest of New England we’ll still be in a cooler northerly air flow.
Forecast details…
TODAY: Mostly sunny. Highs 76-83. Wind SW 5-15 MPH.
TONIGHT: Mostly clear. Lows 56-63. Wind SW up to 10 MPH.
SUNDAY: Mostly sunny. Highs 79-86. Wind SW 5-15 MPH.
SUNDAY NIGHT: Mostly clear. Lows 58-65. Wind SW 5-15 MPH.
MONDAY: Mostly sunny. Highs 78-85. Wind SW 10-20 MPH.
MONDAY NIGHT: Variably cloudy. Chance of a passing shower. Lows 60-67. Wind SW 5-15 MPH shifting to NW.
TUESDAY: Partly sunny. Highs 68-75. Wind NW 10-20 MPH.
TUESDAY NIGHT: Clearing. Lows 45-52. Wind N 5-15 MPH.
WEDNESDAY: Mostly sunny. Highs 70-77. Wind N 5-15 MPH.

DAYS 6-10 (SEPTEMBER 26-30)
A very similar pattern to days 1-5, warming up early in the period, a cold front sliding through with maybe a shower sometime later September 27 or early September 28, then slightly cooler.

DAYS 11-15 (OCTOBER 1-5)
October picks up where September leaves off with an up and down temperature but dry weather pattern as large scale high pressure ridging is dominant, the center of which will probably remain in the east central US with some oscillation, which will eventually help determine daily temperatures and the allowance of any fronts to pass through.

7:03AM

DAYS 1-5 (SEPTEMBER 20-24)
High pressure dominates aloft and a surface high will sink south of New England allowing the feel of summer to return for the next 4 days. A weak cold front passing through the region Monday night will provide the only rain threat of the 5-day period in the form of a passing shower for some locations, and Tuesday will be slightly cooler as we get into a northwesterly air flow behind that front, though an upper disturbance may produce more cloudiness than we will see any of the 4 days preceding it.
Forecast details…
TODAY: Sunny. Highs 73-80. Wind S up to 10 MPH.
TONIGHT: Clear. Lows 53-60. Wind SW up to 10 MPH.
SATURDAY: Mostly sunny. Highs 76-83. Wind SW 5-15 MPH.
SATURDAY NIGHT: Mostly clear. Lows 56-63. Wind SW up to 10 MPH.
SUNDAY: Mostly sunny. Highs 79-86. Wind SW 5-15 MPH.
SUNDAY NIGHT: Mostly clear. Lows 58-65. Wind SW 5-15 MPH.
MONDAY: Mostly sunny. Highs 78-85. Wind SW 10-20 MPH.
MONDAY NIGHT: Variably cloudy. Chance of a passing shower. Lows 60-67. Wind SW 5-15 MPH shifting to NW.
TUESDAY: Partly sunny. Highs 68-75. Wind NW 10-20 MPH.

DAYS 6-10 (SEPTEMBER 25-29)
High pressure dominates with seasonable temperatures September 25 and 29 and warmer than average temperatures the other 3 days.

DAYS 11-15 (SEPTEMBER 30-OCTOBER 4)
High pressure continues to dominate with some up and down to the temperatures, averaging above normal overall, and mainly dry weather.

7:23AM

DAYS 1-5 (SEPTEMBER 19-23)
The dominance of high pressure will continue through Sunday, with the center of the surface high sinking to the south with time, resulting in a warming trend. This high will also play a role in keeping Hurricane Humberto far out at sea, but will not prevent some large ocean swells and rough surf to impact the coast this weekend, so keep that in mind of beaching or boating for the last weekend of summer. During Monday, a cold front will approach from the west and may have just enough moisture to work with to kick off a few showers, probably late-day or night. That’s the only rain risk in the 5-day period.
Forecast details…
TODAY: Sunny. Highs 66-73. Wind light variable becoming SE under 10 MPH.
TONIGHT: Clear. Patchy fog in low-lying interior locations. Lows 47-54. Wind light variable.
FRIDAY: Sunny. Highs 70-77. Wind S up to 10 MPH.
FRIDAY NIGHT: Clear. Lows 50-57. Wind SW up to 10 MPH.
SATURDAY: Mostly sunny. Highs 73-80. Wind SW 5-15 MPH.
SATURDAY NIGHT: Mostly clear. Lows 53-60. Wind SW up to 10 MPH.
SUNDAY: Mostly sunny. Highs 76-83. Wind SW 5-15 MPH.
SUNDAY NIGHT: Mostly clear. Lows 58-65. Wind SW 5-15 MPH.
MONDAY: Partly sunny. Risk of a shower late-day or night. Highs 78-85. Wind SW 10-20 MPH.

DAYS 6-10 (SEPTEMBER 24-28)
High pressure ridge backs off then re-surges, putting us in a similar pattern cycle to days 1-5, largely dry, a bit cooler at first then warming up again.

DAYS 11-15 (SEPTEMBER 29-OCTOBER 3)
And yet again, a very similar pattern cycle continues with largely dry weather, probably a quick cool-down then warming back up.

7:31AM

DAYS 1-5 (SEPTEMBER 18-22)
High pressure will be in control and our weather pattern will be quiet, although the previously mentioned things are still very much valid – the potential patchy frost in normal cold spots Thursday morning, and Humberto passing far offshore by the weekend resulting in larger ocean swells, some rough surf, and increased rip current risk at beaches later this week. With warmer than average temperatures, and few or no life guards at beaches, this becomes more dangerous.
Forecast details…
TODAY: Lots of clouds and limited sun morning, especially eastern MA and southeastern NH, then more sun. Highs 61-68. Wind NE 5-15 MPH.
TONIGHT: Clear. Patchy fog interior lower elevations. Spotty light frost possible in normal cold spots mainly central MA and southwestern NH. Lows 35-42 interior low lying spots, 42-47 most areas, 47-52 coastline and urban centers. Wind light variable.
THURSDAY: Sunny. Highs 66-73. Wind light variable becoming SE under 10 MPH.
THURSDAY NIGHT: Clear. Patchy fog in low-lying interior locations. Lows 47-54. Wind light variable.
FRIDAY: Sunny. Highs 70-77. Wind S up to 10 MPH.
FRIDAY NIGHT: Clear. Lows 50-57. Wind SW up to 10 MPH.
SATURDAY: Mostly sunny. Highs 73-80. Wind SW 5-15 MPH.
SATURDAY NIGHT: Mostly clear. Lows 53-60. Wind SW up to 10 MPH.
SUNDAY: Mostly sunny. Highs 76-83. Wind SW 5-15 MPH.

DAYS 6-10 (SEPTEMBER 23-27)
High pressure ridging is expected to be the dominant player, maybe weakening slightly as a couple disturbances moving along the jet stream to the north, then strengthening again. This pattern is dry with only a limited shower risk and temperatures generally above normal.

DAYS 11-15 (SEPTEMBER 28-OCTOBER 2)
A very similar pattern continues, very limited shower risk, mainly dry and warmer than average as high pressure dominates.

7:24AM

DAYS 1-5 (SEPTEMBER 17-21)
High pressure dominates. It’s a dry pattern, but there are still things to talk about, such as the cooler air on a north to northeast wind through Wednesday, which may also bring in some low level ocean cloudiness for parts of the region anytime from later today into Wednesday, and maybe a patch of drizzle from the thickest clouds, and there is also the possibility of the first patchy frost of the season in typical interior low-lying cold spots Thursday morning as we’ll have perfect conditions for radiational cooling Wednesday night. We also will need to watch for increasing swells and some rough surf, due to well-offshore Hurricane Humberto, along the shoreline later this week, which will be a concern as we will also be turning warmer as high pressure sinks south of the region. This will send some people to the beaches for “one last go”, but with these conditions the rip current risk will be high, and many beaches are not staffed with life guards after Labor Day Weekend. Extra caution will be imperative! I will repeat this reminder as the week goes on. Please tell your family/friends if you know they will be going to the coast.
Forecast details…
TUESDAY: Mostly sunny. Highs 64-71. Wind N-NE 5-15 MPH.
TUESDAY NIGHT: Variably cloudy, clouds favoring NH and eastern MA coastal areas where patchy drizzle may occur. Lows 43-50, coolest interior valleys. Wind light variable.
WEDNESDAY: Lots of clouds and limited sun morning, especially eastern MA and southeastern NH, then more sun. Highs 61-68. Wind NE 5-15 MPH.
WEDNESDAY NIGHT: Clear. Lows 35-42 interior low lying spots, 42-47 most areas, 47-52 coastline and urban centers. Wind light variable.
THURSDAY: Sunny. Highs 66-73. Wind light variable becoming SE under 10 MPH.
THURSDAY NIGHT: Clear. Patchy fog in low-lying interior locations. Lows 47-54. Wind light variable.
FRIDAY: Sunny. Highs 70-77. Wind S up to 10 MPH.
FRIDAY NIGHT: Clear. Lows 50-57. Wind SW up to 10 MPH.
SATURDAY: Mostly sunny. Highs 73-80. Wind SW 5-15 MPH.

DAYS 6-10 (SEPTEMBER 22-26)
A summer feel September 22-23 as we reach the autumnal equinox (September 23) with dry weather and much above normal temperatures. A series of cold fronts will knock temperatures back somewhat to near to above normal with a couple rounds of showers possible September 24-26.

DAYS 11-15 (SEPTEMBER 27-OCTOBER 1)
Another surge of significant warmth is possible in the last days of September and possibly to October 1 as high pressure in upper levels expands across the Northeast again. Dry weather would be dominant, with shower activity limited.

7:12AM

DAYS 1-5 (SEPTEMBER 16-20)
The waning summer will deliver some of the best weather we’ve had all season, but we often see that in September, which is one of the nicest months in New England. There are 2 bumps in an otherwise smooth weather road this week, the first being a disturbance passing through the region today that may kick off a shower. This system is faster-moving and weaker than I originally thought it would be. The second is a cold front that slides down the coast from the northeast early Wednesday and may introduce a period of cloudiness and brief shower/drizzle with just enough moisture available. Temperatures will be near to slightly below normal as high pressure will be centered north of the region through Thursday, but as the center sinks to the south a quick warm-up is in the cards for the end of the week.
Forecast details…
TODAY: Variably cloudy with a few showers possible through midday, then clearing north to south. Highs 67-74. Wind NW-N 5-15 MPH.
TONIGHT: Clear. Patchy valley, swamp, and bog fog. Lows 46-53. Wind N under 10 MPH.
TUESDAY: Mostly sunny. Highs 64-71. Wind N-NE 5-15 MPH.
TUESDAY NIGHT: Clear evening. Clouds arrive NH Seacoast and MA East Coast toward dawn with a possible shower or period of drizzle. Lows 43-50, coolest interior valleys. Wind light variable.
WEDNESDAY: Lots of clouds to start, especially eastern MA and southeastern NH, then sun increases. Highs 61-68. Wind NE 5-15 MPH.
WEDNESDAY NIGHT: Clear. Lows 45-52. Wind light variable.
THURSDAY: Sunny. Highs 66-73. Wind light variable.
THURSDAY NIGHT: Clear. Patchy fog in low-lying interior locations. Lows 47-54. Wind light variable.
FRIDAY: Sunny. Highs 70-77. Wind S up to 10 MPH.

DAYS 6-10 (SEPTEMBER 21-25)
The September 21-22 weekend, the last of the summer, looks like it will represent well with dry weather and above normal temperatures. Hurricane Humberto will have just made its closest pass to New England about 600 miles offshore, much to far for any direct weather impact, but close enough to send some larger ocean swells to the New England Coast during the weekend – keep that in mind of sneaking in one more round of beach or boating. A couple disturbances from the west may bring a round or 2 of showers during the September 23-25 period, but overall it will still be on the dry side with temperatures averaging above normal.

DAYS 11-15 (SEPTEMBER 26-30)
Staying with a slow transition, still on the milder side, but better opportunities for showers at times heading into late September as the jet stream sinks to the south to send more disturbances this way while a high pressure ridge tries to hang on to the south and east of New England.

7:28AM

DAYS 1-5 (SEPTEMBER 15-19)
No changes for today’s update. High pressure southwest of the region sends a warm/dry westerly air flow across southern New England today, a very nice late summer day. A disturbance dives out of Canada and across the region the first half of Monday, possibly triggering some showers and maybe even a thunderstorm. This will be followed by another push of high pressure from Canada with pleasant weather Tuesday into midweek.
Forecast details…
TODAY: Early morning clouds Cape Cod & Islands with a few showers crossing the Islands, otherwise mostly sunny. Less humid. Highs 75-82. Wind W 5-15 MPH.
TONIGHT: Mostly clear evening. Increasing clouds overnight. Lows 55-62. Wind W 5-15 MPH.
MONDAY: Mostly cloudy with scattered showers and a slight risk of a thunderstorm morning-midday. Clearing north to south afternoon. Highs 66-73. Wind W 10-15 MPH shifting to N with higher gusts.
MONDAY NIGHT: Clear. Patchy valley, swamp, and bog fog. Lows 45-52. Wind N diminishing to under 10 MPH.
TUESDAY: Mostly sunny. Highs 63-70. Wind NE 5-15 MPH, higher gusts.
TUESDAY NIGHT: Mostly clear. Lows 43-50, coolest interior valleys. Wind light variable.
WEDNESDAY: Mostly sunny. Highs 64-71. Wind E up to 10 MPH.
WEDNESDAY NIGHT: Clear. Lows 45-52. Wind light variable.
THURSDAY: Sunny. Highs 67-74. Wind light variable.

DAYS 6-10 (SEPTEMBER 20-24)
High pressure surface and aloft will provide fair weather and above normal temperatures for the final 3 days of summer September 20-22. High pressure gives way to an approaching trough from the west, slowly, and while still mild it will start to turn more unsettled later in the period.

DAYS 11-15 (SEPTEMBER 25-29)
Staying with a slow transition, still on the milder side, but better opportunities for showers at times heading into late September as the jet stream sinks to the south to send more disturbances this way while a high pressure ridge tries to hang on to the south and east of New England.

8:31AM

DAYS 1-5 (SEPTEMBER 14-18)
A weak cold front approach the region today and pass through tonight and very early Sunday. This front will produce plenty of cloudiness but limited shower activity, although a few of the showers that form south of Boston during the late night hours may be on the heavy side. High pressure builds in Sunday, but it will be a warm day. In fact it will be one of those instances because of today’s cloud cover and tomorrow’s modified air mass that the air behind a cold front will actually be warmer than the air ahead of it for most of the region. A disturbance will cross New England Monday morning and midday and drag a stronger cold front through. This system will bring a shower threat as well. High pressure builds in behind that with great weather Tuesday and Wednesday.
Forecast details…
TODAY: Mostly cloudy. Risk of passing showers mid-day on. More humid. Highs 68-75. Wind S 5-15 MPH inland, 10-20 MPH coast, higher gusts.
TONIGHT: Mostly cloudy. Risk of passing showers, trending toward the South Coast where a few may be heavy. Humid. Lows 60-67. Wind S 10-20 MPH and gusty, shifting to W.
SUNDAY: Clouds and showers may linger Cape Cod and Islands early, otherwise mostly sunny. Less humid. Highs 75-82. Wind W 5-15 MPH.
SUNDAY NIGHT: Increasing clouds. Lows 55-62. Wind W 5-15 MPH.
MONDAY: Mostly cloudy with scattered showers and a slight risk of a thunderstorm morning-midday. Gradual clearing north to south afternoon. Highs 66-73. Wind W 10-15 MPH shifting to N with higher gusts.
MONDAY NIGHT: Clear. Patchy valley, swamp, and bog fog. Lows 45-52. Wind N diminishing to under 10 MPH.
TUESDAY: Mostly sunny. Highs 63-70. Wind NE 5-15 MPH, higher gusts.
TUESDAY NIGHT: Mostly clear. Lows 43-50, coolest interior valleys. Wind light variable.
WEDNESDAY: Mostly sunny. Highs 64-71. Wind E up to 10 MPH.

DAYS 6-10 (SEPTEMBER 19-23)
High pressure surface and aloft will provide fair weather and above normal temperatures and, as it looks now, will keep tropical activity to the south and east of New England. The end of the period may cool slightly as a new high pressure area arrives via eastern Canada. Rainfall will be very limited and possibly non-existent during this period. We may need to watch for increased fire danger as we’ve been rather dry since the start of August.

DAYS 11-15 (SEPTEMBER 24-28)
This remains a lower than average confidence forecast due to still some unknown potential tropical weather factors and their direct or indirect impact on the larger scale pattern. For now, going to delay the onset of cooling and keep an overall mild to warm outlook with better opportunities for showers at times. Many stages of fine-tuning to come.