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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Mostly Cloudy

67°F

19°C

Humidity 70%
Wind Speed SE 20 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 12 Nov 10:56 PM PST
Extended Forecast for

Belmont CA

Wind Advisory until November 13, 04:00pm
Click here for hazard details and duration
Wind Advisory
  •  
    Wind Advisory until November 13, 04:00pm

    NOW until 4:00pm Thu

    Wind Advisory

  • Tonight

    Low: 59 °F

    Showers and
    Breezy

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 1pm, then showers likely. High near 67. Breezy, with a south southeast wind 17 to 23 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 67 °F

    Showers and
    Breezy

  • Thursday Night

    Thursday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 52. South wind 7 to 11 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 52 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 4pm. Mostly sunny, with a high near 66. East southeast wind 6 to 8 mph becoming north in the afternoon.

    High: 66 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers between 10pm and 4am. Partly cloudy, with a low around 50. Northeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: A 20 percent chance of showers after 10am. Mostly sunny, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.

    High: 67 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Slight Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly after 10am. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers. Low around 59. Breezy, with a southeast wind 18 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Showers and possibly a thunderstorm before 1pm, then showers likely. High near 67. Breezy, with a south southeast wind 17 to 23 mph, with gusts as high as 50 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 52. South wind 7 to 11 mph, with gusts as high as 18 mph. New precipitation amounts of less than a tenth of an inch possible.
Friday
A 30 percent chance of showers before 4pm. Mostly sunny, with a high near 66. East southeast wind 6 to 8 mph becoming north in the afternoon.
Friday Night
A chance of showers between 10pm and 4am. Partly cloudy, with a low around 50. Northeast wind around 6 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 20 percent chance of showers after 10am. Mostly sunny, with a high near 67. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 52.
Sunday
A chance of showers, mainly after 10am. Mostly cloudy, with a high near 65.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 51.
Monday
A chance of showers, mainly before 10am. Mostly sunny, with a high near 63.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 47.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belmont CA
 37.52°N 122.29°W (Elev. 207 ft)
Last Update:
12:26 pm PST Nov 12, 2025
Forecast Valid:
11pm PST Nov 12, 2025-6pm PST Nov 19, 2025
 
Forecast Discussion
 
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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