Boston Basks, Then Ducks: One Last Warm Day Before Weekend Weather Reset

Boston is starting Thursday, August 27, with mostly clear skies and temperatures around 66 degrees at Logan, but the calm opening will give way to a warmer afternoon near 83. Southerly winds will increase through the day, and thunderstorms may become an issue later Thursday, especially for anyone heading inland.

Warm Afternoon, Storm Risk Later

Partly sunny skies should carry Boston through most of the day, with south winds between 5 and 15 mph and only a 7% chance of precipitation in the city's point forecast. Still, the National Weather Service says scattered late-day thunderstorms could turn strong to severe, with the greatest concern west of the Connecticut River Valley.

The main hazards could include damaging straight-line winds and hail, while a tornado cannot be completely ruled out. No watches, warnings, or advisories are posted for Massachusetts, Rhode Island, or Connecticut, but people with late-day outdoor plans should keep an eye on the sky and have a quick indoor backup.

Friday Stays Unsettled Before A Dry Weekend

Friday will remain warm near 82 degrees, with a 40% chance of showers and thunderstorms after 11 a.m. Any severe-weather threat is expected to be lower than Thursday's, and new rainfall amounts should generally stay below a tenth of an inch.

The latest outlook sharpens the timing from the earlier Hoodline forecast, which had placed the bigger storm concern mainly Thursday night and Friday. Saturday now looks like the weekend's cleanest weather day, with mostly sunny skies, a high near 78, and no rain in the forecast; Sunday should be mostly sunny and warmer near 83.

Rain Chances Return Early Next Week

A slight chance of showers arrives Sunday night, followed by a partly sunny Monday near 78 with another slight rain chance. Tuesday turns cooler near 72 and could bring showers or a thunderstorm, while Tuesday night carries a 50% chance of showers and thunderstorms.

Wednesday remains unsettled, with mostly cloudy skies, a high near 73, and a 40% chance of showers and thunderstorms. Forecasters say a backdoor cold front may linger near southern New England, making early next week's temperatures less certain than the weekend outlook.