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.