Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Mostly Cloudy

59°F

15°C

Humidity 87%
Wind Speed W 10 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 22 Aug 08:20 AM PDT
Extended Forecast for

San Mateo CA

  • Today

    Today: Sunny, with a high near 76. West wind 6 to 13 mph, with gusts as high as 20 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 58. West wind 5 to 10 mph becoming light southwest  after midnight. Winds could gust as high as 18 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Cloudy, then gradually becoming mostly sunny, with a high near 76. Light and variable wind becoming west 5 to 8 mph in the afternoon.

    High: 76 °F

    Decreasing
    Clouds

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58. West wind 5 to 9 mph becoming calm  in the evening.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 75. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 76. West wind 6 to 13 mph, with gusts as high as 20 mph.
Tonight
Increasing clouds, with a low around 58. West wind 5 to 10 mph becoming light southwest after midnight. Winds could gust as high as 18 mph.
Sunday
Cloudy, then gradually becoming mostly sunny, with a high near 76. Light and variable wind becoming west 5 to 8 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 58. West wind 5 to 9 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 75. Calm wind becoming west 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Partly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.56°N 122.33°W (Elev. 108 ft)
1:26 am PDT Aug 22, 2026
8am PDT Aug 22, 2026-6pm PDT Aug 28, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database