Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

haze

52°F

11°C

Humidity 81%
Wind Speed N 4 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 46°F (8°C)
Visibility 3.00 mi
Last update 10 Dec 11:00 AM PST
Extended Forecast for

Foster City CA

  • Today

    Today: Sunny, with a high near 55. North northwest wind around 7 mph.

    High: 55 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 46. North northwest wind 3 to 5 mph.

    Low: 46 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 59. North wind 5 to 7 mph.

    High: 59 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. East northeast wind 3 to 5 mph.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 61. North northeast wind around 6 mph.

    High: 61 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am.  Otherwise, partly cloudy, with a low around 47.

    Low: 47 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, mostly sunny, with a high near 63.

    High: 63 °F

    Patchy Fog
    then Mostly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 55. North northwest wind around 7 mph.
Tonight
Mostly clear, with a low around 46. North northwest wind 3 to 5 mph.
Thursday
Sunny, with a high near 59. North wind 5 to 7 mph.
Thursday Night
Mostly clear, with a low around 46. East northeast wind 3 to 5 mph.
Friday
Sunny, with a high near 61. North northeast wind around 6 mph.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 64.
Saturday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 47.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 63.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
A slight chance of rain. Mostly cloudy, with a high near 64.
Monday Night
A chance of rain. Mostly cloudy, with a low around 53.
Tuesday
A chance of rain. Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.57°N 122.27°W (Elev. 3 ft)
12:26 am PST Dec 10, 2025
11am PST Dec 10, 2025-6pm PST Dec 16, 2025
 
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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