Fire Weather Concerns; Record Warmth Spreads

The Plains to the mid-Mississippi Valley continue with warm and dry conditions. Any fires that initiate could spread quickly. The warm temperatures will expand across the Southern Plains into the Southwest where numerous records are expected through the weekend. Meanwhile, a cold front will move southward across the northern Plains and Great Lakes region where some snow will develop this weekend. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

55°F

13°C

Humidity 87%
Wind Speed NE 4 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 27 Feb 06:20 AM PST
Extended Forecast for

San Mateo CA

  • Today

    Today: Mostly sunny, with a high near 72. Calm wind becoming north around 6 mph in the afternoon.

    High: 72 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 69. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54. West wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: Patchy fog between 7am and 8am.  Otherwise, mostly cloudy, with a high near 62. Calm wind becoming west around 6 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of rain after 10am.  Mostly sunny, with a high near 62.

    High: 62 °F

    Slight Chance
    Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 62.

    High: 62 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 72. Calm wind becoming north around 6 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 57. Calm wind.
Saturday
Mostly sunny, with a high near 69. Calm wind becoming west northwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 54. West wind around 5 mph becoming calm in the evening.
Sunday
Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 62. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
A 20 percent chance of rain after 10am. Mostly sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Mostly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.58°N 122.33°W (Elev. 33 ft)
1:59 am PST Feb 27, 2026
6am PST Feb 27, 2026-6pm PST Mar 5, 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