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

Dangerous Cold and Gusty Winds Anticipated This Weekend

A significant arctic outbreak will bring frigid temperatures and dangerously cold wind chills to the Northeast and Mid-Atlantic this weekend. Strong winds which could produce tree damage and power outages, and periods of snow squalls are also possible. Relief from this cold and a warming trend is forecast to commence by the beginning to middle of next week. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

54°F

12°C

Humidity 87%
Wind Speed N 0 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 05 Feb 06:20 AM PST
Extended Forecast for

San Mateo CA

  • Today

    Today: Sunny, with a high near 71. North wind 3 to 5 mph.

    High: 71 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. Calm wind.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 68. Calm wind becoming west around 5 mph in the afternoon.

    High: 68 °F

    Partly Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 65.

    High: 65 °F

    Patchy Fog
    then Partly
    Sunny

  • Sunday Night

    Sunday Night: A slight chance of rain. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 51.

    Low: 51 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Monday

    Monday: Mostly cloudy, with a high near 62.

    High: 62 °F

    Mostly Cloudy

Detailed Forecast

Today
Sunny, with a high near 71. North wind 3 to 5 mph.
Tonight
Mostly cloudy, with a low around 51. Calm wind.
Friday
Partly sunny, with a high near 68. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 49. Calm wind.
Saturday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 65. Calm wind becoming northwest around 6 mph in the afternoon.
Saturday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 48.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 65.
Sunday Night
A slight chance of rain. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 51.
Monday
Mostly cloudy, with a high near 62.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 46.
Tuesday
A chance of rain. Partly sunny, with a high near 59.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain. Partly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.54°N 122.32°W (Elev. 194 ft)
Last Update:
1:47 am PST Feb 5, 2026
Forecast Valid:
6am PST Feb 5, 2026-6pm PST Feb 11, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation