Severe Weather and Flooding Threat in the Central U.S. and Mid-Atlantic; Dangerous Heat in the West and Southern Plains

Severe thunderstorms and heavy rain are expected across the central High Plains into parts of the central and southern Plains and in the the Mid-Atlantic today. Intense, dangerous heat will persist across the West, Southwest, and Southern Plains into the end of the week. Elevated to critical fire weather conditions expected in the Great Basin and Four Corners region. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Overcast

59°F

15°C

Humidity 77%
Wind Speed W 11 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 23 Jun 09:35 AM PDT
Extended Forecast for

San Mateo CA

  • Today

    Today: Sunny, with a high near 72. Light west southwest wind increasing to 5 to 10 mph in the afternoon.

    High: 72 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 55. West southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 55 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74. Light southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 56. West wind 5 to 9 mph becoming light southwest  after midnight.

    Low: 56 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75. Light southwest wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 75 °F

    Sunny

  • Thursday Night

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

    Low: 56 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Friday Night

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

    Low: 57 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 69.

    High: 69 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 72. Light west southwest wind increasing to 5 to 10 mph in the afternoon.
Tonight
Increasing clouds, with a low around 55. West southwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 74. Light southwest wind becoming west 5 to 10 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 56. West wind 5 to 9 mph becoming light southwest after midnight.
Thursday
Sunny, with a high near 75. Light southwest wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Mostly clear, with a low around 56.
Friday
Mostly sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Partly sunny, with a high near 69.
Saturday Night
Clear, with a low around 54.
Sunday
Sunny, with a high near 77.
Sunday Night
Clear, with a low around 55.
Monday
Sunny, with a high near 78.
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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 Jun 23, 2026
9am PDT Jun 23, 2026-6pm PDT Jun 29, 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