By 5:35 a.m. EDT Monday, May 4, 2026, Boston’s official weather station at Logan Airport was reporting mostly cloudy skies and about 48°F, the opening act for a fast warm up. Skies are set to brighten with plenty of sun this afternoon and a high near 68°F, although brisk southwest winds will make it feel a bit more blustery than balmy. If you have outdoor plans, factor in the wind and a drier air mass through the afternoon.
Afternoon Winds Pick Up
Southwest winds will ramp up through the morning and peak during the afternoon, with sustained speeds of 12–22 mph and gusts commonly in the 25–35 mph range. Isolated gusts to around 40 mph are possible at exposed coastal spots. Expect choppy conditions along the harbor and on waterfront trails, and keep in mind that unsecured patio furniture, trash bins, and temporary canopies could easily take a short trip down the block.
Marine Conditions
A Small Craft Advisory is in effect from 11 a.m. to 8 p.m. EDT Monday, May 4, with seas building to 4–6 feet offshore and a chance of near-gale gusts in Buzzards Bay and Nantucket Sound. Nonessential trips should be delayed and loose gear secured, according to NWS Boston.
Elevated Fire Weather
Dry air will drop afternoon humidity into the mid-20s in some locations, prompting a Special Weather Statement for elevated fire-weather potential across much of southern New England, with Cape Cod and the islands excluded. Debris burning is a bad idea today, and grills and cigarettes need extra care. Hoodline ran a related update yesterday on the warming trend and advisories.
What To Expect This Week
Tuesday, May 5 looks even warmer, with highs nearing 75°F away from the immediate coast and continued gusty southwest winds. A slow-moving cold front approaches Wednesday, May 6, bringing an 80% chance of showers and a few embedded thunderstorms, followed by a noticeable cooldown Thursday into the weekend, when highs settle mainly in the 50s.
Quick Tips
Tie down or bring inside loose outdoor items, postpone controlled burns, and give small boats a wide berth while the advisory is in effect. Before heading out this afternoon, check the latest local forecasts and advisories so the wind does not catch you off guard.
