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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. 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

46°F

8°C

Humidity 87%
Wind Speed ENE 6 MPH
Barometer 30.21 in (1023.03 mb)
Dewpoint 43°F (6°C)
Visibility 9.00 mi
Wind Chill43°F (6°C)
Last update 06 Dec 09:35 AM PST
Extended Forecast for

Foster City CA

Coastal Flood Advisory December 6, 09:45am until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 6, 09:45am until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Today

    High: 60 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 46. West northwest wind 5 to 7 mph.

    Low: 46 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly sunny, with a high near 64. Northwest wind 3 to 7 mph.

    High: 64 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 47. West northwest wind 5 to 9 mph.

    Low: 47 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 63. Northwest wind 5 to 8 mph.

    High: 63 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 60. North northwest wind 5 to 9 mph.
Tonight
Increasing clouds, with a low around 46. West northwest wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 64. Northwest wind 3 to 7 mph.
Sunday Night
Partly cloudy, with a low around 47. West northwest wind 5 to 9 mph.
Monday
Mostly sunny, with a high near 63. Northwest wind 5 to 8 mph.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 50.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.57°N 122.27°W (Elev. 3 ft)
Last Update:
2:54 am PST Dec 6, 2025
Forecast Valid:
9am PST Dec 6, 2025-6pm PST Dec 12, 2025
 
Forecast Discussion
 
Get as KML Get as XML

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