Bay Area/ San Francisco/ Weather & Environment

San Francisco Forecast: Cooler Weekend, Dry Weather Later

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Published on September 26, 2026
San Francisco Forecast: Cooler Weekend, Dry Weather LaterSan Francisco Skyline Viewpoint — Scenic Weather Backdrop
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The region is expected to see cooler temperatures and cloud cover over the weekend.

Cooler, Breezier Sunday

Saturday night is expected to be mostly cloudy, with a low around 56. Sunday will stay cooler, reaching about 62 under partly sunny skies. West-southwest gusts could reach 22 mph.

Cooler Conditions Carry Into Monday

Cooler conditions are expected to carry over into Monday. San Francisco's Tuesday high is forecast in the 60s, with coastal highs in the upper 60s and 70s later in the dry week.

How the Warm-Up Compares

For a September benchmark, National Weather Service San Francisco Bay Area climate records list a normal high of 71°F and a record high of 94°F for Sept. 26, set in 1992. The forecast high near 75 is above that normal but far below the record.

A separate September heat wave in 2022 was far more extreme inland: the San Francisco Chronicle reported readings of 116 degrees in Fairfield and Livermore. Those were inland Bay Area temperatures, not readings in San Francisco.

Dry, With Some Coastal Clouds

Patchy low clouds and mist are possible in the region. San Francisco is not expected to get rain through Friday, though the marine layer could make early outdoor plans feel considerably cooler than the afternoon forecast.

Breezier Conditions Offshore

Small-Craft Advisory A Small Craft Advisory is posted.