Tracking Late Season Winter Storms; Unusual Early-Season Heat Wave in the Southwest

Heavy snow and high winds continue in the Great Lakes and Northeast. A moderate atmospheric river will continue to bring heavy precipitation to the Pacific Northwest and northern Rockies. A major winter storm will develop across the northern High Plains tonight into Saturday and rapidly strengthen as it moves into the Great Lakes on Sunday. Above-average temperatures expected in the Southwest. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

haze

57°F

14°C

Humidity 71%
Wind Speed WNW 20 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 48°F (9°C)
Visibility 5.00 mi
Last update 13 Mar 07:00 PM PDT
Extended Forecast for

San Mateo CA

  • Tonight

    Tonight: Partly cloudy, with a low around 49. West wind around 7 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 72. Northwest wind 6 to 10 mph.

    High: 72 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. West northwest wind 5 to 8 mph becoming calm  after midnight.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 80 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. West wind around 7 mph.
Saturday
Sunny, with a high near 72. Northwest wind 6 to 10 mph.
Saturday Night
Mostly clear, with a low around 50. West northwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 56. Northwest wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 86.
Monday Night
Clear, with a low around 58.
Tuesday
Sunny, with a high near 88.
Tuesday Night
Clear, with a low around 58.
Wednesday
Sunny, with a high near 86.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 59.
Friday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.54°N 122.32°W (Elev. 194 ft)
1:54 pm PDT Mar 13, 2026
7pm PDT Mar 13, 2026-6pm PDT Mar 20, 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