Forecast discussion: High pressure off the Southeast U.S. coastline brought Boston bright sunshine. Temperatures for the day reached between 70 and 73 degrees with a little bit more humidity in the air. It would have been warmer, but strong winds from the east brought cooler air over the mainland. Looking at the weather map, a disturbance to our west will be passing into New England this evening. The disturbance will bring showers and thunderstorms during the overnight. Parts of eastern Massachusetts will see heavy rainfall, which might create a little street or river flooding.
As we move into Wednesday, the showers and thunderstorms will move out to sea. A cold front over Ohio at the moment will move over Southern New England. We will maintain cloud cover and the threat of some isolated showers through the day and into the overnight. As we move into early Thursday morning, the chances for seeing rainfall will increase. A low pressure system over eastern Colorado at the moment will push through the Mid-Atlantic region and remain south of Southern New England. However, it will bring light to moderate rain and isolated thunderstorms.
The low will move offshore by Thursday night, but the low will remain stationary near the Gulf of Maine on Friday. We will see the chance for isolated showers through the day, before high pressure behind the low pushes the system further east. The high will bring drier air and warmer temperatures for the weekend. Unlike last weekend, this one looks fantastic. Temperatures will be slightly above normal, as highs reach the upper 70’s to near 80 degrees. By Sunday night, a new cold front will bring the risk of showers and light rain on Monday morning.
We will see precipitation throughout the day, until the front moves offshore early Tuesday morning. We will see the precipitation come to an end before dawn, but we will only see limited sunshine. With winds coming from the east, we will see temperatures cool into the lower 70’s.
72 hour forecast:
Tonight: Overcast with showers and thunderstorms. Some rainfall may be heavy at times. Patchy fog will develop after 2 a.m. We will see a low of 58.
Wednesday: Rain tapers to showers by mid-morning, becoming more isolated through the day. We will have a high of 64 with east-southeast winds of 8-11 mph.
Wednesday night: Cloudy skies with showers/light rain arriving by 3 a.m. Patchy fog may develop before midnight. We will see a low of 58 with east-southeast winds of 4-7 mph.
Thursday: Light to moderate rain with isolated thunderstorms. We will see a high of 65.
Thursday night: Scattered showers with a low of 57.
Friday: Isolated showers/thunderstorms with a high of 70.
Friday night: Clearing skies and becoming partly cloudy after midnight. We will see a low of 60.
Saturday: Mostly sunny. Highs 76-79, lows 57-60.
Sunday: Mostly sunny. Highs 77-80, lows 57-60.
Monday: Cloudy with showers/rain arriving by mid-morning. Highs 72-75, lows 58-61.
Tuesday: Rain/isolated thunderstorms end by 4 a.m. with partly sunny skies for the rest of the day. Highs 71-74, lows 55-58.