Boston/ Weather & Environment

Boston Basks in Breezy Sunshine Before Midweek Warmup Rolls In

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Published on September 14, 2026
Boston Basks in Breezy Sunshine Before Midweek Warmup Rolls InSource: King of Hearts / Wikimedia Commons

Boston is shaking off a brief early shower threat Monday before settling into a mostly sunny, breezy day. Temperatures near 70 degrees early will climb to around 77, giving the city a pleasant afternoon with noticeably lower humidity.

Any isolated rain showers should end before 8 a.m. Monday. After that, skies will clear quickly, though northwest winds of 10 to 18 mph could gust as high as 30 mph through the afternoon.

Cooler Air Arrives Monday Night

Monday night will be mostly clear, but the breeze and clear skies will send temperatures tumbling to around 55 degrees. North winds will continue at 9 to 14 mph, with occasional gusts up to 24 mph.

Boaters should take extra care, as a Small Craft Advisory is in effect for portions of the local waters from late Monday morning into early Tuesday. The strongest winds are expected during the day Monday and again Monday evening.

Boating Safety Guidance

Boston Harbor boaters should treat the advisory as a reason to delay planned operations. According to Boston University's Small Boat Safety Manual, operators should postpone planned boat operations in waters covered by a National Weather Service Small Craft Advisory until more favorable conditions return. The manual also advises operators to inspect the boat and its equipment, assess weather and sea conditions, and brief passengers on emergency procedures before departure.

Sunny Tuesday Leads Into A Midweek Warmup

Tuesday will be sunny but cooler, with a high near 65. The forecast then turns warmer quickly, with Wednesday bringing sunshine and a high near 76.

Thursday should remain mostly sunny with a high around 77, although rain showers could develop Thursday night. Friday should be mostly sunny, with temperatures reaching 72 degrees, according to the National Weather Service.

Weekend Forecast Leans Cooler And Showery

Saturday's outlook is not specified.

Boston-Weather & Environment