Thursday Forecast

7:39AM

DAYS 1-5 (AUGUST 31-SEPTEMBER 4)
Cold front comes through tonight and results in a significant difference from a final day of August that feels like summer and a first day of September that feels like autumn. High pressure tries to hold on for the weekend but the remains of Harvey will have to traverse the region in one form or another, the details of which are yet to be determined, but the current leaning is for part 1 to miss to the south late Saturday and for part 2 to come through with a few areas of showers Sunday morning and midday then a summery feel returning for Labor Day.
TODAY: Partly cloudy. Isolated mid to late afternoon showers/thunderstorms. More humid. Highs 70-75 South Coast, 76-82 elsewhere. Wind SW 10-20 MPH.
TONIGHT: Partly cloudy. Lows 52-57. Wind W to NW 5-15 MPH.
FRIDAY: Partly cloudy. Highs 66-72. Wind NW 10-20 MPH and gusty.
SATURDAY: Mostly to partly sunny. Lows from the lower 40s interior valleys to lower 50s coast. Highs from the upper 60s to middle 70s.
SUNDAY: Variably cloudy. Risk of showers morning-midday. Lows from the middle 50s to lower 60s. Highs from the upper 60s to upper 70s.
MONDAY – LABOR DAY: Partly cloudy. Lows in the 60s. Highs from the lower 80s to lower 90s.

DAYS 7-10 (SEPTEMBER 5-9)
A more humid pattern with episodes of showers/thunderstorms possible. Temperatures near normal.

DAYS 11-15 (SEPTEMBER 10-14)
Same general pattern expected with temperatures near to above normal.

Wednesday Forecast

7:42AM

Another slight format skew today on account of Labor Day Weekend upcoming…

DAYS 1-6 (AUGUST 30-SEPTEMBER 4)
Low pressure tossed a bit of rain further north into eastern MA and RI than I expected as it expanded during its intensification overnight. This is a non-tropical system and will move away today. The remainder of the forecast is largely unchanged with a warmer day expected Thursday, a cold front bringing cooler/dry air for Friday-Saturday, then a little uncertainty based on where the remains of Harvey go. For now, staying with yesterday’s idea, but a whole lot of the Sunday-Monday period may end up rain-free as well.
TODAY: Mainly cloudy morning with rain gradually tapering off southeastern MA and a few showers dissipating over central MA and southwestern NH. Clearing this afternoon. Highs 70-77. Wind NE to N 5-15 MPH.
TONIGHT: Mostly clear. Patchy fog. Lows 50-57. Wind W up to 10 MPH.
THURSDAY: Partly cloudy. Scattered mid to late afternoon showers/thunderstorms. More humid. Highs 70-75 South Coast, 75-80 elsewhere. Wind SW 10-20 MPH.
FRIDAY: Partly cloudy. Lows in the 50s. Highs from the upper 60s to lower 70s.
SATURDAY: Mostly sunny. Lows from the lower 40s interior valleys to lower 50s coast. Highs from the upper 60s to middle 70s.
SUNDAY: Variably cloudy. Risk of showers early. Lows from the middle 50s to lower 60s. Highs from the upper 60s to upper 70s.
MONDAY – LABOR DAY: Partly cloudy. Lows in the 60s. Highs from the lower 80s to lower 90s.

DAYS 7-10 (SEPTEMBER 5-8)
A more humid pattern with episodes of showers/thunderstorms possible. Temperatures near normal.

DAYS 11-15 (SEPTEMBER 9-13)
Same general pattern expected with temperatures near to above normal.

Tuesday Forecast

4:46PM

DAYS 1-5 (AUGUST 29-SEPTEMBER 2)
Tropical moisture will pass south of New England tonight and early Wednesday, skirting the South Coast with rain and otherwise bringing some cloudiness to the region. A cold front traverses the region later Thursday with a shower and thunderstorm threat. A cool/dry air mass arrives for the end of the week including the start of the Labor Day weekend.
THROUGH EVENING: Mainly cloudy. Temperatures in the 60s to near 70. Wind light NE to E.
TONIGHT: Mainly cloudy. A period of rain possible after midnight favoring Islands & Cape Cod. Lows 52-57. Wind E 5-15 MPH except 15-25 MPH with higher gusts Nantucket.
WEDNESDAY: Mostly cloudy to partly sunny morning including a risk of rain early on Nantucket. Mostly sunny afternoon. Highs 70-77. Wind NE to N 5-15 MPH.
WEDNESDAY NIGHT: Mostly clear. Patchy fog. Lows 50-57. Wind W up to 10 MPH.
THURSDAY: Partly cloudy. Scattered mid to late afternoon showers/thunderstorms. More humid. Highs 70-75 South Coast, 75-80 elsewhere. Wind SW 10-20 MPH.
FRIDAY: Partly cloudy. Lows in the 50s. Highs from the upper 60s to lower 70s.
SATURDAY: Mostly sunny. Lows from the lower 40s interior valleys to lower 50s coast. Highs from the upper 60s to middle 70s.

DAYS 6-10 (SEPTEMBER 3-7)
Expecting 2 pushes of tropical moisture associated with the remnants of Harvey, the first largely failing and producing only isolated showers on September 3, the second combining with a trough from the west and bringing a better chance of showers on Labor Day, September 4. Additional showers/thunderstorms possible at times during the remainder of the period as a trough sets up in the Great Lakes and high pressure builds off the Atlantic Coast.

DAYS 11-15 (SEPTEMBER 8-12)
Same general pattern expected with temperatures variable but trending to above normal, with a few episodes of showers and thunderstorms, but the forecast is lower than average confidence at this point.

Monday Forecast

11:31AM

DAYS 1-5 (AUGUST 28-SEPTEMBER 1)
High pressure remains in control and will hold today. Tropical moisture lilely in the form of a tropical storm will pass south of New England Tuesday night and Wednesday and bring cloudiness, and possibly some rain onto the South Coast as well but this will not turn out to be a major storm or anything lasting. A cold front will cross the region Thursday and deliver a cool air mass to end the week and start September.
TODAY: Mostly sunny. Highs 70-78, coolest coast. Wind NE to E 5-15 MPH.
TONIGHT: Mostly clear. Lows 50-58. Wind light E.
TUESDAY: Increasing clouds. Highs 68-75, coolest East Coast. Wind NE 5-15 MPH except 10-20 MPH with higher gusts late South Coast.
WEDNESDAY: Mostly cloudy to partly sunny. Chance of rain early South Coast. Lows from the middle 50s to lower 60s. Highs in the 70s.
THURSDAY: Mostly sunny to partly cloudy. Chance of late-day shower or thunderstorm. Lows from the upper 50s to lower 60s. Highs from the middle 70s to lower 80s.
FRIDAY: Partly sunny. Lows in the 50s. Highs from the middle 60s to lower 70s.

DAYS 6-10 (SEPTEMBER 2-6)
At this time Saturday September 2 through Sunday September 3 look dry with a cool start and a warmer finish. Monday September 4 and Tuesday September 5 look humid and showery with drier weather returning to end the period.

DAYS 11-15 (SEPTEMBER 7-11)
Looks like a drier pattern with cool start and warmer finish.

Sunday Forecast

10:39AM

Making a few tweaks in details and timing but no massive changes from yesterday’s overall ideas.

DAYS 1-5 (AUGUST 27-31)
High pressure remains in control and will hold early in the week. It looks like tropical moisture in the form of a tropical cyclone will pass south of New England Tuesday night and Wednesday and bring the cloudiness that I mentioned in, and it may be close enough to toss some rain onto the South Coast as well but this will not turn out to be a major storm or anything lasting. The uncertainty was already known and remains somewhat as this area of disturbed weather still has a somewhat uncertain future and we can only go largely by the most reliable guidance we have at this point, so further tweaks may be necessary. I’m also going to adjust the timing of a cold front that I had mentioned for next Friday, and thinking that now arrives by late Thursday.
TODAY: Mostly sunny. Highs 70-78, coolest coast. Wind light NE to E.
TONIGHT: Mostly clear. Lows 47-57, coolest interior valleys. Wind light variable.
MONDAY: Mostly sunny. Highs 70-78, coolest coast. Wind NE to E 5-15 MPH.
MONDAY NIGHT: Mostly clear. Lows 50-58. Wind light E.
TUESDAY: Increasing clouds. Highs 68-75, coolest East Coast. Wind NE 5-15 MPH except 10-20 MPH with higher gusts late South Coast.
WEDNESDAY: Mostly cloudy to partly sunny. Chance of rain early South Coast. Lows from the middle 50s to lower 60s. Highs in the 70s.
THURSDAY: Mostly sunny to partly cloudy. Chance of late-day shower or thunderstorm. Lows from the upper 50s to lower 60s. Highs from the middle 70s to lower 80s.

DAYS 6-10 (SEPTEMBER 1-5)
At this time Friday September 1 through Sunday September 3 look dry with a cool start and a warmer finish. Monday September 4 and/or may still turn showery with another front and potential tropical moisture. Lower confidence with time on this part of the forecast.

DAYS 11-15 (SEPTEMBER 6-10)
Skeptical of medium range guidance and staying with an idea of warmer/drier overall.

Saturday Forecast

10:42AM

Altering format slightly today to group the last days of August and the Labor Day Weekend together.

DAYS 1-6 (AUGUST 26-31)
High pressure will remain in control for the last 6 days of August with fair weather and below normal but pleasant temperatures. Active tropics will not impact this area as Harvey weakens and sits over eastern Texas producing major flooding, and a possible developing system near Florida would be kept south of New England by the middle of the week, except possibly some cloudiness, with high pressure holding strong.
TODAY: Mostly sunny. Highs 70-78, coolest coast. Wind NE 5-15 MPH.
TONIGHT: Mostly clear. Lows 48-58, coolest interior valleys. Wind light NE.
SUNDAY: Mostly sunny. Highs 70-78, coolest coast. Wind light NE to E.
SUNDAY NIGHT: Mostly clear. Lows 47-57, coolest interior valleys. Wind light variable.
MONDAY: Mostly sunny. Highs 70-78, coolest coast. Wind NE to E 5-15 MPH.
TUESDAY: Partly cloudy. Lows in the 50s. Highs in the 70s.
WEDNESDAY: Partly sunny. Lows from the middle 50s to lower 60s. Highs in the 70s.
THURSDAY: Mostly sunny. Lows from the upper 50s to lower 60s. Highs from the middle 70s to lower 80s.

DAYS 7-10 (SEPTEMBER 1-4 / LABOR DAY WEEKEND)
Current timing suggests cold fronts passing by around Friday September 1 and Monday September 4 with high pressure dominating in between. The first cold front would likely have limited moisture and the second front could possibly have remnant tropical moisture with it, producing more widespread showers. Humidity levels may be up especially second half of the period. Temperatures not far from normal.

DAYS 11-15 (SEPTEMBER 5-9)
Current indications are for warmer and drier than normal weather during this period.

Friday Forecast

8:19AM

DAYS 1-5 (AUGUST 25-29)
A disturbance moving across the region this morning will produce cloudiness and even a few showers, then high pressure overtakes the weather for several days resulting in a cooler than normal and dry weather pattern.
TODAY: Lots of clouds and a passing shower in some locations morning. Partly to mostly sunny afternoon. Highs 73-80. Wind light N with coastal sea breezes.
TONIGHT: Mostly clear. Lows 48-52 interior valleys, 53-58 elsewhere. Wind light N.
SATURDAY: Mostly sunny. Highs 71-77, coolest coast. Wind NE 5-15 MPH.
SUNDAY: Mostly sunny. Lows in the 50s but some upper 40s interior valleys. Highs in the 70s.
MONDAY: Mostly sunny. Lows in the 50s. Highs from the middle 70s to lower 80s.
TUESDAY: Partly cloudy. Lows from the middle 50s to lower 60s. Highs from the upper 70s to lower 80s.

DAYS 6-10 (AUGUST 30-SEPTEMBER 3)
The pattern during this period will support more warmth and humidity, but we will have to watch for 2 potential impacts from tropical systems, and in this case impacts can range widely from remnant moisture to an actual storm. One will be possible remnant moisture from Hurricane Harvey which will be impacting coastal Texas for the next several days. Another will be a possible tropical system forming off Florida’s East Coast which may eventually try to move northward up the coast or possibly remain offshore. Plenty of questions yet to be answered regarding both of these.

DAYS 11-15 (SEPTEMBER 4-8)
Indications are for generally above normal temperatures with limited chances for any rainfall.

Thursday Forecast

2:24AM

DAYS 1-5 (AUGUST 24-28)
High pressure centered over southeastern Canada and a low pressure trough aloft gradually weakening and sliding eastward combined for a cooler than normal and dry weather pattern for the next 5 days.
TODAY: Mostly sunny. Highs 72-79. Wind light N with coastal sea breezes.
TONIGHT: Mostly clear. Lows 48-52 interior valleys, 53-58 elsewhere. Wind light N.
FRIDAY: Partly cloudy. Highs 73-80. Wind light N with coastal sea breezes.
FRIDAY NIGHT: Partly cloudy evening. Clear overnight. Lows 48-52 interior valleys, 53-58 elsewhere. Wind light N.
SATURDAY: Mostly sunny. Highs 71-77, coolest coast. Wind light NE.
SUNDAY: Mostly sunny. Lows in the 50s but some upper 40s interior valleys. Highs in the 70s.
MONDAY: Mostly sunny. Lows in the 50s. Highs from the middle 70s to lower 80s.

DAYS 6-10 (AUGUST 29-SEPTEMBER 2)
Humidity and warmth increases. The main potential precipitation threats would come from a potential tropical system offshore of the East Coast pending development near Florida but this is still uncertain, and the remains of Harvey which is expected to impact Texas soon.

DAYS 11-15 (SEPTEMBER 3-7)
Indications are for generally above normal temperatures with limited chances for any rainfall.

Wednesday Forecast

12:06PM

DAYS 1-5 (AUGUST 23-27)
Cold front moves offshore and in comes a drier and cooler pattern lasting many days.
TODAY: Clouds and a passing shower possible Cape Cod through midday. Sun and passing clouds elsewhere. Highs 77-85. Wind shifting to W 5-15 MPH.
TONIGHT: Mostly clear. Lows 50-55 interior, 55-60 coast. Wind NW 5-15 MPH.
THURSDAY: Mostly sunny. Highs 75-82. Wind NW 5-15 MPH.
FRIDAY: Partly cloudy. Lows from the middle 50s to lower 60s. Highs from the middle 70s to lower 80s.
SATURDAY: Mostly sunny. Lows in the 50s. Highs in the 70s.
SUNDAY: Mostly sunny. Lows in the 50s. Highs in the 70s.

DAYS 6-10 (AUGUST 28-SEPTEMBER 1)
Generally fair with temperatures pleasant but somewhat below normal to start the period as high pressure holds. Increasing humidity and possibly a few showers later in the period. Indications continue that any tropical activity will be kept to the south and east but will continue to watch it.

DAYS 11-15 (SEPTEMBER 2-6)
Seasonably warm and somewhat humid with a few shower and thunderstorm opportunities during this time period.

Tuesday Forecast

7:27AM

DAYS 1-5 (AUGUST 22-26)
A one-day heat and humidity episode will be quickly put to rest by a cold front that passes by early Wednesday. The timing of this front is such that it is likely sparing the region an outbreak of strong to possibly severe thunderstorms, leaving only the risk of a few showers and locally heavier storms coming through late tonight. Drier air will flow in later Wednesday and be in control into late week, along with somewhat cooler temperatures.
TODAY: Partly cloudy. Humid. Highs 78-85 south Coast, 85-92 elsewhere. Wind SW 5-15 MPH.
TONIGHT: Increasing clouds. Showers/thunderstorms possible from northwest to southeast late night and overnight hours. Humid. Lows 65-72. Wind SW 10-20 MPH.
WEDNESDAY: Mostly cloudy with showers and thunderstorm exiting from northwest to southeast early, then partly sunny with a slight risk of isolated afternoon showers. Humid start, drier finish. Highs 77-85. Wind shifting to W 5-15 MPH.
THURSDAY: Mostly sunny. Lows in the 50s. Highs in the 70s.
FRIDAY: Partly cloudy. Lows from the middle 50s to lower 60s. Highs from the middle 70s to lower 80s.
SATURDAY: Mostly sunny. Lows in the 50s. Highs in the 70s.

DAYS 6-10 (AUGUST 27-31)
Generally fair with temperatures pleasant but somewhat below normal to start the period as high pressure holds. Increasing humidity and possibly a few showers later in the period. Indications for now are that any tropical activity will be kept to the south and east but will continue to watch it.

DAYS 11-15 (SEPTEMBER 1-5)
Seasonably warm and somewhat humid with a few shower and thunderstorm opportunities during this time period, which includes the Labor Day Weekend. Will fine-tune and detail this forecast going forward.