Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

57°F

14°C

Humidity 62%
Wind Speed W 11 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 44°F (7°C)
Visibility 7.00 mi
Last update 01 Feb 06:20 PM PST
Extended Forecast for

San Mateo CA

  • Tonight

    Tonight: Patchy fog before 2am, then patchy fog after 4am.  Otherwise, partly cloudy, with a low around 48. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 48 °F

    Partly Cloudy
    then Patchy
    Fog

  • Monday

    Monday: Areas of fog before 8am.  Otherwise, sunny, with a high near 64. Calm wind becoming north around 5 mph in the afternoon.

    High: 64 °F

    Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 67. Northeast wind 3 to 6 mph.

    High: 67 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. East northeast wind 3 to 5 mph.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog before 2am, then patchy fog after 4am. Otherwise, partly cloudy, with a low around 48. West northwest wind around 6 mph becoming calm in the evening.
Monday
Areas of fog before 8am. Otherwise, sunny, with a high near 64. Calm wind becoming north around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 46. Calm wind.
Tuesday
Sunny, with a high near 67. Northeast wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 48. East northeast wind 3 to 5 mph.
Wednesday
Sunny, with a high near 68.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 50.
Friday
Mostly sunny, with a high near 64.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
A slight chance of rain. Partly 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)
1:33 pm PST Feb 1, 2026
6pm PST Feb 1, 2026-6pm PST Feb 8, 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