Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

63°F

17°C

Humidity 36%
Wind Speed N 3 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 35°F (2°C)
Visibility 7.00 mi
Last update 24 Jan 03:00 PM PST
Extended Forecast for

San Mateo CA

  • Tonight

    Tonight: Mostly clear, with a low around 43. Calm wind becoming south southeast around 6 mph in the evening.

    Low: 43 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 58. Calm wind becoming east around 5 mph.

    High: 58 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45. Light east wind.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61. Light east wind.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after 10pm.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain, mainly before 4pm.  Partly sunny, with a high near 59.

    High: 59 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A slight chance of rain before 10pm.  Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 43. Calm wind becoming south southeast around 6 mph in the evening.
Sunday
Increasing clouds, with a high near 58. Calm wind becoming east around 5 mph.
Sunday Night
Mostly cloudy, with a low around 45. Light east wind.
Monday
Mostly sunny, with a high near 61. Light east wind.
Monday Night
Mostly clear, with a low around 44. Calm wind.
Tuesday
Mostly sunny, with a high near 62.
Tuesday Night
A 30 percent chance of rain after 10pm. Mostly cloudy, with a low around 48.
Wednesday
A chance of rain, mainly before 4pm. Partly sunny, with a high near 59.
Wednesday Night
A slight chance of rain before 10pm. Partly cloudy, with a low around 47.
Thursday
Mostly sunny, with a high near 62.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Partly sunny, with a high near 62.
Friday Night
Mostly cloudy, with a low around 48.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.58°N 122.33°W (Elev. 33 ft)
12:26 pm PST Jan 24, 2026
3pm PST Jan 24, 2026-6pm PST Jan 31, 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