Boston woke up Sunday, April 26, 2026, to a cool, mostly cloudy start, with temperatures hovering around 45°F at Logan and a light northeast breeze keeping the harbor on the raw side. Most of the region looks to stay dry through the day, although the South Coast, Cape Cod, and the Islands will see the best shot at spotty showers and thicker low clouds into the afternoon. If skies manage to thin late, inland neighborhoods could sneak into the mid-50s.
Afternoon Snapshot
Through the afternoon, expect highs near 53°F across the city, with the warmest inland spots edging into the upper 50s. Coastal areas will lag behind in the upper 40s to low 50s. Winds away from the shoreline should stay on the lighter side from the northeast at about 3 to 8 mph, with a bit more punch closer to the coast. These trends line up with the latest call from NWS Boston.
Monday And Tuesday
High pressure moves in for Monday, April 27, 2026, and Tuesday, April 28, 2026, bringing a much brighter setup with sun and dry conditions across most of the region. The one exception, as usual, will be the Cape and Islands, where an onshore northeast breeze keeps daytime highs stuck in the low 50s. Inland, though, temperatures should climb into the 60s. Nights stay on the chilly side away from the coast, with lows mainly in the mid-30s to low 40s.
Midweek Rain And Thunder Possibility
The quiet pattern starts to break down late Tuesday night as moisture feeds in from the ocean. A better shot at steady rain arrives Wednesday night into Thursday, April 29-30, 2026, along with a slight chance for a rumble of thunder as a frontal system swings through. Ensemble guidance points to solid odds of at least a tenth of an inch of rain across much of the area, with moderate chances for a half-inch where the heavier bands set up. If you have outdoor plans on April 29-30, it is worth checking in on the forecast earlier in the week for the latest timing and potential impacts.
Boaters And Ferry Riders
Small Craft Advisories are posted for the waters near Cape Cod and Nantucket late tonight into Monday, April 27, 2026, as northeast winds strengthen and seas build into the 4 to 6 foot range. Mariners and ferry riders should plan on choppy crossings. If you are gearing up for a harbor run or an island trip, check the latest marine advisories and ferry schedules before heading for the docks. The advisories are posted in the NWS marine forecast.
