National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rainfall in the Mid-Atlantic; Fire Weather Concerns in the West

Thunderstorms are expected to bring heavy rain and potential significant flash and urban flooding to the Mid-Atlantic on Thursday, especially along the I-95 urban corridor. Dry conditions, gusty winds, and isolated dry thunderstorms will continue to bring a critical fire weather threat to the northwestern Great Basin into the interior Northwest through Thursday. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

Lat: 37.61961°NLon: 122.36558°WElev: 10.0ft.

Mostly Cloudy

61°F

16°C

Humidity 82%
Wind Speed W 12 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 30 Jul 09:05 PM PDT
Extended Forecast for

San Mateo CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. West southwest wind 5 to 8 mph.

    Low: 57 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 72. West southwest wind 5 to 11 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. West southwest wind 6 to 10 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 74. West wind 5 to 10 mph.

    High: 74 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 57. West southwest wind 5 to 8 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 72. West southwest wind 5 to 11 mph.
Thursday Night
Partly cloudy, with a low around 57. West southwest wind 6 to 10 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 74. West wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 57. West wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Mostly clear, with a low around 56.
Sunday
Mostly sunny, with a high near 74.
Sunday Night
Mostly clear, with a low around 56.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 57.
Wednesday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.56°N 122.33°W (Elev. 108 ft)
Last Update:
1:26 pm PDT Jul 30, 2025
Forecast Valid:
9pm PDT Jul 30, 2025-6pm PDT Aug 6, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation