7:25AM
DAYS 1-5 (JUNE 19-23)
A disturbance, the second in a series of 3, will pass south of the region today and may bring some showers to the South Coast. The rest of the region will escape those showers, although a diurnally-driven pop-up shower may still occur in central MA and southern NH this afternoon. The marine layer has resulted in a lot of low cloudiness which will eventually burn off in some areas but may have difficulty as the sun is compromised and much weaker due to higher cloudiness above. The third and final wave of low pressure in the series will be the strongest and also cut a pathway further north, bringing the boundary it’s riding along right into southern New England late Thursday and Thursday night. This will result in more widespread rainfall which also includes the risk of thunderstorms, though no severe weather will occur. We will have to watch for the possibility of road flooding due to some heavier rainfall in some locations. But this wave will be moving right along and drier air will begin to move in after a damp start to Friday, leaving the end of that day much different than it started, the contrast going from rather tranquil but overcast, damp, and rain or drizzle lingering as the day dawns, to a gusty wind, sunshine, and dry air as the day ends. What about the weekend? Looking great! Still may hold onto a gusty breeze Saturday as we will still be between high pressure approaching from the west and low pressure to the northeast of the region, and that will keep the air dry and the air temperature below 80. By Sunday, high pressure is right on us, and 80+ may occur away from where coastal sea breezes develops.
Forecast details…
TODAY: Mostly cloudy. Scattered showers favoring the South Coast. Isolated pop-up showers afternoon southwestern NH and central MA. Highs 73-80, coolest coast. Wind light variable.
TONIGHT: Mostly cloudy. Lows 57-64. Wind light variable.
THURSDAY: Cloudy. Showers likely, some possibly heavy. Risk of thunderstorms. Highs 70-77. Wind SE 5-15 MPH.
THURSDAY NIGHT: Cloudy. Showers likely, some possibly heavy. Risk of thunderstorms. Lows 60-67. Wind variable 5-15 MPH.
FRIDAY: Cloudy with lingering showers/drizzle/fog early, then clearing. Highs 71-78. Wind variable to NW increasing to 10-20 MPH with higher gusts by late-day.
FRIDAY NIGHT: Clear. Lows 52-59. Wind NW 10-20 MPH with higher gusts.
SATURDAY: Mostly sunny. Highs 72-79. Wind NW 10-20 MPH, diminishing late.
SATURDAY NIGHT: Mostly clear. Lows 53-60. Wind light variable.
SUNDAY: Mostly sunny. Highs 76-83, coolest coast. Wind light variable with sea breezes.
DAYS 6-10 (JUNE 24-28)
Warmer and more humid June 24-25 with a shower or thunderstorm threat both days. Less humid thereafter with a brief shower threat later June 26 or early June 27. Most of this 5-day period will be rain-free.
DAYS 11-15 (JUNE 29-JULY 3)
West to east flow over a high pressure ridge to the south and west of New England is a pattern that brings seasonable to warm weather, is rain-free most of the time, but also provides a few opportunities moving along the jet stream to bring a shower/t-storm threat. This is the pattern currently expected for this period.