Boston/ Weather & Environment

Chilly Boston Morning Gives Way to Toasty Midweek Warmup

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Published on September 15, 2026
Chilly Boston Morning Gives Way to Toasty Midweek WarmupSource: Google Street View

Boston starts Tuesday with mainly sunny skies and a cool morning, but the afternoon will be sunnier and pleasantly mild, topping out near 67. Rain is not expected, and a northeast wind around 8 mph should keep the city feeling more early-fall than late-summer.

Tonight will turn partly cloudy, with temperatures dropping to around 55 and south winds between 3 and 7 mph. The National Weather Service Boston/Norton office expects high pressure to keep the region dry Tuesday before warmer air moves in from the southwest.

Wednesday Brings The Warmup

Wednesday should be mostly sunny and noticeably warmer, with a high near 78 and southwest winds around 5 to 8 mph. Thursday stays partly sunny with a high near 76, though the air will turn more humid as the next round of unsettled weather approaches.

The first meaningful rain chance arrives late Thursday, with showers possible late Thursday into early Friday and a slight chance of thunderstorms Thursday night. Widespread heavy rain is not expected.

Weekend Plans Get More Weather-Dependent

Friday could begin with a few showers or thunderstorms before 8 a.m., then turn mostly sunny with a high near 77. Saturday will be cooler, with skies clearing and a high around 71, although a chance of showers returns after 1 a.m. Sunday.

Precipitation is more likely Sunday and Monday, with heavy rain possible Sunday and a high near 73. Rain chances extend into early next week, with Monday morning showers possible and temperatures reaching a high near 76; no watches, warnings or advisories are listed for the Boston area.

Boston-Weather & Environment