Forecast discussion: Currently, a low pressure system over western New York will bring increasing moisture into eastern Massachusetts, with some showers developing along a moving cold front after midnight. The heavier rain will move into the state by the morning commute. However, colder air behind the front will help change the rain to a mix of rain and wet snow in the time for the evening commute. Boston will see a full changeover to wet snow early Friday morning. Any snowfall may stick to the ground in this area, but amounts will be light. Also, a Freeze Watch will be in effect tomorrow night until 8 AM Friday morning. So, if you have any outside plants, please bring them inside. High pressure will build in on Friday morning, and we will see sunny skies and slightly warmer temperatures. However, the computer models are still disagreeing on where a low pressure system forms off the coast of North Carolina. The American and European models are in more agreement tonight of keeping the low much closer to the shoreline. Because of that, we will see more rainfall during the day, changing over to a mix Saturday night. By early Sunday morning, it will changeover to wet snow. But, the United Kingdom and Canadian models keep the low further out to sea, meaning we will see partly to mostly sunny skies for Sunday. For me, I’m agreeing with the American and European models, keeping the low closer to the coast. Therefore, we will see showers/rain on Saturday, before changing over to a mix of rain/snow showers or wet snow in the northwest section of the state early Sunday morning. High pressure will build into the Northeast U.S., giving us sunny weather for the rest of Sunday, Monday and Tuesday. However, long range computer models disagree once again on another coastal storm forming on either Tuesday or Wednesday. Right now, I’m forecasting another possible storm for Wednesday, but my confidence for this part of the forecast is low.
72 hour forecast:
Tonight: Showers developing early Thursday morning, with rainfall becoming heavier towards sunrise, with a low of 43.
Thursday: Moderate/heavy rain by mid-morning, mixing to a rain/wet snow mix by the late afternoon. We will see a high of 47, with temperatures dropping into the upper 30’s by the evening commute. Patchy fog is possible in the late afternoon. Winds will come from the north-northeast at 10-14 mph.
Thursday night: A Freeze Watch will be in effect. Light/moderate rain along the coast; wet snow showers north and west of Boston. Snowfall amounts in Boston will be a coating to about 1 inch. North and west of the city will see up to 2 inches (mostly on grassy areas). The mercury will fall to 33. Patchy fog is expected. Winds will come from the north-northwest at 10-14 mph.
Friday: Any rain/snow showers and wet snow showers end by mid-morning, becoming sunny, with a high of 48.
Friday night: Clear to partly cloudy skies, with a low of 34.
Saturday: Snow showers in the morning, changing to showers/light rain in the late afternoon, and a high of 46.
Saturday night: Showers tapering to flurries after midnight, and a low of 35.
Sunday: Becoming mostly sunny by mid-morning. Highs 50-53, lows 38-41.
Monday: Mostly sunny. Highs 51-54, lows 39-42.
Tuesday: Mostly sunny. Highs 53-56, lows 39-42.
Wednesday: Cloudy, chance of showers. Highs 55-58, lows 41-44.