Due to a scheduling conflict, I will not be able to produce a forecast for Friday, April 30. I will return to my normal schedule Friday afternoon, with a new forecast starting for Friday night. I apologize for the inconvenience.
Forecast discussion: We had a rather cool day in Boston, as high temperatures only reached the lower to middle 50’s. Due to the cloud cover and winds coming from the east, this helped keep the temperatures well below average for the end of April. Although temperatures will be slowly warming up by Saturday, we will not be able to get rid of the gray clouds until the start of the weekend.
The reason for the cloud cover is due to a weak low pressure system near the coast of Cape Cod. The clouds will continue to rotate around the low’s center, and the low will remain stationary over the next couple of days. We may see a little more sunshine during the early afternoon, which will allow temperatures to reach the upper 50’s. However, the northeast winds will help cool our temperatures on Friday, as I am forecasting temperatures to reach the upper 40’s to near 50 degrees.
We may see a few isolated showers from an upper level disturbance which will pass to our south Friday night. The strong low I was worried about a few days ago over central Florida now is forecast to stay well south and east of us. Once the low and disturbances all move away from New England, high pressure from the south will bring drier skies by Saturday night.
As we head into early next week, the tropical jet will actually be north of Southern New England. This will allow milder temperatures to arrive, as we reach the middle 60’s on Sunday. By Monday, we will reach the lower 70’s. However, the good weather will come to an end.
By Monday night, a cold front from Canada will slowly pull south, and be located right over Southern New England Monday night. This front may bring some showers to the area Monday night into Tuesday morning. There is a chance the front may stall over us into Tuesday night, and the precipitation will become steadier, as another low from the Ohio River Valley passes over the region. The showers come to an end Wednesday morning, as weak high pressure ridging tries to build in from the northwest. We will still be mild, but temperatures reach the middle to upper 60’s next Wednesday.
72 hour forecast:
Tonight: Cloudy skies with a sprinkle or two. We will see a low of 45.
Thursday: Mostly cloudy with a passing sprinkle or shower in the morning, with more sunshine by the early afternoon. We will see a high of 58. Winds will come from the east-northeast at 8-11 mph.
Thursday night: Mostly cloudy with an isolated shower between 2 a.m. and 6 a.m. We will see a low of 43. Winds will come from the north-northeast at 7-10 mph.
Friday: Partly sunny but cooler with a high of 50.
Friday night: Isolated to scattered showers and breezy with a low of 42.
Saturday: Partly sunny skies with a high of 56.
Saturday night: Clear skies with a low of 43.
Sunday: Mostly sunny and warmer, with the risk of a passing shower late Sunday night. Highs 63-66, lows 47-50.
Monday: Mostly sunny with increasing clouds by the late afternoon with possible showers by midnight. Highs 70-73, lows 53-56.
Tuesday: Scattered showers become steadier by the evening. Highs 72-75, lows 54-57.
Wednesday: Showers end by 7 a.m. with partly sunny skies. Highs 66-69, lows 45-48.