Forecast discussion: Well, the skies opened up by the late morning, as Logan Airport officially received .60 inches of rainfall. There may be some showers scattered across the state this evening, with a possible thunderstorm until midnight.
A low pressure system centered over northern New York will keep its cold front stalled just west of Southern New England this evening. The front will begin to push through Rhode Island by tomorrow afternoon, as winds shift to the northwest by Wednesday night. The cold front may help trigger more showers for Wednesday afternoon. Eventually, high pressure ridging will begin to build over eastern Massachusetts Wednesday night, allowing us to see some starlit skies before dawn.
As we head towards the weekend, the upper levels of the atmosphere will change. We will see an upper level trough move just east of us, allowing for some warmer air to return. We will see this during the weekend, as temperatures slowly climb back into the middle to upper 80’s. A new cold front or weak trough will bring some scattered showers for Friday evening. That frontal boundary may linger into Saturday, keeping us with wet weather and warm temperatures.
By Sunday, the disturbance will dissipate, and high pressure will bring mostly sunny skies for the rest of Sunday and Monday. Temperatures may reach the upper 80’s next Tuesday, with the risk for some passing showers by the middle of the afternoon.
72 hour forecast:
Tonight: Scattered showers through the evening, with an isolated thunderstorm until 10 p.m. Patchy fog is expected before 10 p.m. We will see a low of 68.
Wednesday: Partial sunshine during the morning, with the return of scattered showers by the late morning. It will remain humid with a high of 83 with winds shifting to the west-southwest at 9-12 mph.
Wednesday night: Showers end by 10 p.m., with clearing skies. We will see a low of 66. Winds will shift to the northwest at 6-9 mph.
Thursday: Mostly sunny with a high of 82.
Thursday night: Partly cloudy into 4 a.m. with high level clouds moving in. We will see a low of 66.
Friday: Partly sunny in the morning with scattered showers before 7 p.m. We will see a high of 84.
Friday night: Scattered showers and warm with the low only falling to 68.
Saturday: Isolated/scattered showers with a possible afternoon thunderstorm. Highs 84-87, lows 66-69.
Sunday: Showers end by 7 a.m., with mostly sunny skies before 11 a.m. Highs 82-85, lows 65-68.
Monday: Mostly sunny. Highs 84-87, lows 67-70.
Tuesday: Partly sunny with possible showers by mid-afternoon. Highs 85-88, lows 64-67.