Boston/ Weather & Environment

Foggy Logan Wake-Up Kicks Off Warm, Stormy Stretch For Boston Beaches

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Published on August 18, 2026
Foggy Logan Wake-Up Kicks Off Warm, Stormy Stretch For Boston BeachesSource: Wikipedia/Umar Waseem, CC BY-SA 4.0, via Wikimedia Commons

Boston is waking Tuesday under patchy fog and upper-60s air, with visibility reduced around Logan before the morning haze starts to lift. The city should get a partly sunny, mild afternoon near 77°F, though a few showers could still wander through.

The National Weather Service Boston/Norton forecast calls for fog before 9 a.m., followed by a 20% chance of rain showers and northeast winds at 3 to 8 mph. Onshore air will keep Boston and other coastal neighborhoods in the 70s, while clearer spots farther inland may run warmer.

Fog Gives Way To A Mild Afternoon

Clouds should thin gradually from west to east, with the best breaks arriving around midday and afternoon temperatures hovering in the mid-70s. Rain is not expected to be a daylong problem, but a passing shower remains possible from midafternoon into early evening.

Wednesday Warms Up Before The Pattern Turns Wetter

Tonight turns mostly cloudy with a low near 67°F, and patchy fog may return after 4 a.m. Wednesday is the warmest day in the near-term forecast, with mostly sunny skies and a high near 86°F.

That brief warm-up gives way to a more unsettled stretch: Thursday brings a 40% chance of showers after 2 p.m., followed by a mostly sunny Friday near 79°F. Saturday stays cooler near 74°F with a 40% shower chance, while Saturday night and Sunday carry a 60% chance of rain, with thunderstorms possible Sunday afternoon.

Rip Current Risk Continues Along Eastern Massachusetts Beaches

A Rip Current Statement is in effect from 8 a.m. to 8 p.m. Tuesday for east-facing beaches in eastern Essex, Suffolk, eastern Norfolk, eastern Plymouth, Barnstable and Nantucket counties. That includes coastal areas serving Boston-area beachgoers, so swimmers should stay near a lifeguard and take posted warnings seriously. Anyone caught in a rip current should relax and float, avoid swimming straight against it, move parallel to shore if possible, and wave for help if needed.

Boston-Weather & Environment