Forecast discussion: Temperatures have been rather cool in Boston on Wednesday, thanks mostly in part with east winds coming off the cooler ocean and increasing clouds. Our high temperature for the day was only 46 degrees. We will see some warmer weather on Thursday, as I am expecting mostly sunny skies for the entire day. However, northeast winds will limit the mercury from rising above the lower 50’s.
We will begin to see clouds increase once again Thursday night, due to an area of low pressure developing over western Oklahoma at the moment. A second low ahead of the system will move east of the first low, and help to bring some scattered showers by Friday night. At this time, I do not expect the showers to come during the opening game at Fenway during the mid-afternoon. The cold front will pass through on Saturday, and all precipitation should end by the middle of Saturday afternoon. Any sunshine may help raise temperatures into the upper 50’s before sunset. However, with winds remaining from an easterly direction, it will remain cooler in the capital city.
A new high pressure system will sit right over the Northeast U.S. for Sunday and most of Monday. A new low pressure system will bring some showers Monday night. The low will gather some strength as it settles over New York Tuesday. This means we could see some moderate rain at times Tuesday afternoon. However, the low will slowly move into Canada, and all precipitation will end as the cold front moves offshore Tuesday night.
As we move into the middle of next week, a deep long wave trough in the upper levels of the atmosphere will remain over the eastern U.S. Although we will have mostly sunny skies for next Wednesday, colder air from Canada will make temperatures well below normal during the daytime hours. At this time, I am only expecting highs in the middle 40’s.
72 hour forecast:
Tonight: Partly cloudy with a low of 36.
Thursday: Mostly sunny with a high of 51. Winds will come from the north-northwest at 11-14 mph.
Thursday night: Mostly cloudy with a low of 33. Winds will come from the northeast at 5-8 mph.
Friday: Partly sunny with showers arriving by the end of the evening commute. We will see a high of 42.
Friday night: Showers/light rain and a low of 37.
Saturday: Light to moderate rain ending by 4 p.m. Partial sunshine before sunset. We will see a high of 54.
Saturday night: Partly cloudy with a low of 37.
Sunday: Mostly sunny. Highs 51-54, lows 36-39.
Monday: Mostly sunny until the early afternoon, with showers arriving before midnight. Highs 52-55, lows 40-43.
Tuesday: Cloudy with moderate rain, ending before midnight. Highs 51-54, lows 37-40.
Wednesday: Mostly sunny and breezy. Highs 44-47, lows 32-35.