Forecast discussion: High pressure ridging is beginning to weaken, as we await a low pressure system over Ohio. This low will bring a mix of rain and snow showers after midnight to Boston, and do not be surprised if you see some slushy accumulations. However, you will find a coating to as high as an inch on grassy areas and cars. We will see the mixed precipitation end around the late morning, when it becomes warm enough to change back to showers. The showers will end by Saturday evening, and skies will clear. We will see some partial sunshine on Sunday, as a quick moving disturbance will bring some showers by late Sunday afternoon. The showers will end by Monday morning, and we will return to mostly sunny skies Monday afternoon. We will have a second day of sunshine on Tuesday, with highs possibly reaching 60. But, a cold front will bring more showers for Wednesday morning. However, most of the models will have the showers offshore by the evening. We will then see dry weather for the rest of the week. The confidence level after Wednesday’s forecast is good at this time, since the American, European, and United Kingdom models all agree high pressure ridging will be over Southern New England.
72 hour forecast:
Tonight: A mix of rain and wet snow showers around 2 AM. Any accumulations will be a coating to an inch on grassy areas and cars. We will see a low of 34.
Saturday: Wet snow and rain turns to all showers by late-morning, and tapering off by sunset. I’m forecasting a high of 44. Winds will come from the east at 9-12 mph.
Saturday night: Becoming clear and a low of 34. Winds will come from the north at 5-8 mph.
Sunday: Partly sunny with showers starting around 5 PM and a high of 52.
Sunday night: Showers and a low of 39.
Monday: Showers ending by mid-morning, and becoming mostly sunny by the afternoon. I’m forecasting a high of 55.
Monday night: Partly cloudy with a low of 36.
Tuesday: Mostly sunny. Highs 56-59, lows 37-40.
Wednesday: Cloudy with showers in the morning. Highs 55-58, lows 37-40.
Thursday: Partly sunny. Highs 52-55, lows 35-38.
Friday: Mostly sunny. Highs 55-58, lows 36-39.