Boston woke up to wall-to-wall blue sky and a crisp bite in the air on Sunday, March 29, 2026, with morning temperatures in the 30s and a full day of sun on tap. Highs are expected to top out near 49°F this afternoon as southwest winds strengthen. The combo of gusty breezes and dropping humidity has forecasters flagging an elevated fire-weather concern for parts of the region, as reported by the National Weather Service.
Afternoon Winds Pick Up
Southwest winds are set to ramp up through the afternoon, with sustained speeds around 8 to 15 mph and gusts up to 25 to 30 mph in exposed spots and along the shoreline. Those gusts could make for a brisk stroll and send unsecured lawn chairs on the move, with the strongest winds expected through late afternoon before easing tonight.
Elevated Fire Weather
The National Weather Service has issued a Special Weather Statement warning that afternoon relative humidity could drop into the 25 to 40 percent range away from the Cape and islands. Pair that with gusts of 25 to 30 mph and dry ground, and you get elevated fire potential. Officials are urging extra caution with anything that could spark a flame, including cigarettes and open burning, according to National Weather Service Boston/Norton.
Looking Ahead This Week
The mild stretch sticks around into early next week, with highs near 60°F on Monday, March 30, 2026, and climbing into the mid 60s on Tuesday, March 31, 2026. By Wednesday, April 1, 2026, temperatures could pop into the low 70s before a cold front moves in. That front may bring showers and a few isolated thunderstorms Wednesday evening, followed by a notably cooler turn late in the week and a chance of rain flipping to snow in some inland and higher elevation areas, according to the forecast discussion from National Weather Service Boston/Norton.
Boaters and Commuters
Small craft advisories are in effect for local coastal waters from noon Sunday, March 29, 2026, through 7 p.m. Monday, March 30, 2026. Seas are expected to build with a choppy, short-period swell that could make for a rough ride. On land, drivers should be ready for gusty crosswinds on bridges and exposed roadways this afternoon and again midweek when winds pick up.
