Forecast discussion: High pressure centered over the Great Lakes brought bright sunshine to the inland region of eastern Massachusetts on Wednesday. However, along the Cape and Islands there remained low clouds with a few isolated showers. This activity was due to a cold front that passed through Boston last night. But, it stalled just south of the Cape and Islands throughout the day. Hence, the extra moisture and instability stayed in place for the grey weather.
As we move through the overnight, the cold front will slowly push south and east. So, the entire region will see partly cloudy skies by late in the day. Temperatures will be slightly below normal for this time in July, as northeast winds begin to turn to the east-southeast in the afternoon. However, the winds are coming off the cooler ocean waters, resulting in the cooler temperatures.
As we head into the weekend, Saturday looks nice, and winds will turn to the southwest, making for a land breeze. Sunday will not be a bad day, but we will begin to see increasing clouds during the afternoon and evening. We may even see some scattered showers before sunset. This will be due to a large area of low pressure, which will bring northwest winds and the risk of some thunderstorms by Monday afternoon. The best chance for strong thunderstorms will be Tuesday night, as the front pushes through Southern New England.
We will see lingering showers and thunderstorms through the end of Wednesday morning. We will begin to see partial clearing during the afternoon, before skies become partly cloudy Wednesday evening. Mostly sunny skies are expected for next Thursday. Also, a strong upper level low center will be to the northwest of New England. This low will help bring some cooler air into the region by the middle of next week. Temperatures during the day may only reach the upper 70’s to lower 80’s.
72 hour forecast:
Tonight: Partly cloudy with a low of 66.
Friday: Mostly sunny inland, with partly sunny skies along the southern part of the state. We will see a high of 78 with east-southeast winds at 8-11 mph.
Friday night: Clear skies with a low of 63. Winds will come from the south-southwest at 3-6 mph.
Saturday: Partly to mostly sunny with a high of 82.
Saturday night: Partly cloudy with a low of 66.
Sunday: Increasing clouds through the day with scattered showers by 7 p.m. We will see a high of 82.
Sunday night: Overcast with scattered showers and a low of 70.
Monday: Showers/thunderstorms. Highs 82-85, lows 70-73.
Tuesday: Showers/thunderstorms, with possible strong thunderstorms Tuesday evening. Highs 84-87, lows 68-71.
Wednesday: Showers/thunderstorms end by late Wednesday morning. Partly sunny skies expected during the afternoon. Highs 80-83, lows 63-66.
Thursday: Mostly sunny. Highs 79-82, lows 61-64.