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

64°F

18°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 55°F (13°C)
Visibility 7.00 mi
Last update 27 Feb 11:00 PM PST
Extended Forecast for

San Mateo CA

  • Tonight

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

    Low: 57 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 54. Light west wind.

    Low: 54 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, cloudy, then gradually becoming mostly sunny, 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: Patchy fog after 5am.  Otherwise, mostly cloudy, with a low around 52. West wind around 5 mph becoming calm  in the evening.

    Low: 52 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Patchy fog before 7am.  Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

  • 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

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 57. Calm wind.
Saturday
Mostly sunny, with a high near 74. Calm wind becoming west northwest around 6 mph in the afternoon.
Saturday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 54. Light west wind.
Sunday
Patchy fog before 8am. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 62. Calm wind becoming west around 6 mph in the afternoon.
Sunday Night
Patchy fog after 5am. Otherwise, mostly cloudy, with a low around 52. West wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 7am. Otherwise, mostly sunny, with a high near 63.
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 51.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
Clear, with a low around 48.
Thursday
Sunny, with a high near 65.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.58°N 122.33°W (Elev. 33 ft)
3:04 pm PST Feb 27, 2026
11pm PST Feb 27, 2026-6pm PST Mar 6, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database