Weekly Outlook: April 19-25, 2021

It’s Patriots Day in Massachusetts, and although the Marathon won’t be held until October, there’s still plenty going on today, and the weather should cooperate for the most part.

The day will start off with some sunshine and seasonably mild temperatures, but an upper-level disturbance will cross the Northeast today, allowing for some clouds, and probably a few showers, maybe even a thunderstorm, this afternoon. They shouldn’t be widespread, nor heavy, but given that we still have a significant rainfall deficit, every little bit helps. A cold front will move through on Tuesday, but with little fanfare aside from some clouds and possibly a shower or two. Ahead of it, temperatures will be quite mild, possibly topping 70 in some locations. That front will stall out near or just south of the South Coast Tuesday night, then lift back northward as a warm front on Wednesday as low pressure passes north and west of the region. With low pressure to our northwest, it’ll be quite mild again, but another cold front will approach from the west, producing another round of showers and thunderstorms.

Temperatures could reach 70 in many areas on Tuesday. Image provided by WeatherBell.

Behind that front, high pressure builds in with much cooler conditions on Thursday and to a lesser extent on Friday. A few weak upper-level disturbances will also be moving through with some clouds at times, but little precipitation other than a stray shower. Next weekend looks unsettled, but the details are still a little fuzzy. A period of rain or showers and cool temperatures appears likely at some point, but will it be late Saturday and Saturday night as one model shows, or on Sunday as a different one indicates? We should have a better handle on that when we do our Weekend Outlook on Thursday.

Year-to-date rainfall totals are running 4-6 inches below normal across much of the region. Image provided by the Northeast Regional Climate Center.

Monday: Early sun, then clouds develop, with a few showers or thunderstorms possible in the afternoon. High 61-68, coolest along the coast.

Monday night: Clear to partly cloudy. Low 38-45.

Tuesday: A mix of sun and clouds, breezy, just a slight chance for a late-day shower. High 64-71.

Tuesday night: Partly cloudy. Low 41-48.

Wednesday: Becoming mostly cloudy and breezy with showers likely, possibly a thunderstorm, ending in the evening. High 59-66.

Thursday: Plenty of clouds with a slight chance for a shower, windy and much cooler. High 43-50.

Friday: Intervals of clouds and sunshine, breezy. High 53-60.

Saturday: Early sun, then clouds return with showers possible late in the day and at night. High 60-67.

Sunday: Cloudy with a chance of rain. High 53-60.

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