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

Snow Squalls in the Northeast U.S. on Thursday; Heavy Rain Along the Gulf Coast

An arctic cold front will move through the Great Lakes and Northeast on Thursday, bringing moderate to heavy snow, strong winds, and possible whiteout conditions through Thursday afternoon. A storm system interacting with Gulf moisture will bring moderate to heavy rainfall to the western and central Gulf Coast on Thursday. Isolated instances of flash flooding will be possible. Read More >

Hazardous Weather Conditions

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

47°F

8°C

Humidity 68%
Wind Speed W 3 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 04 Dec 01:56 AM PST
Extended Forecast for

Foster City CA

Coastal Flood Advisory December 4, 02:01am until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 4, 02:01am until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Overnight

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 63. Northeast wind 5 to 8 mph becoming north northwest in the afternoon.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 45. Light west wind.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 64. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 64 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 48. West wind 3 to 5 mph.

    Low: 48 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 49 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 44. Light south southeast wind.
Thursday
Sunny, with a high near 63. Northeast wind 5 to 8 mph becoming north northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 45. Light west wind.
Friday
Sunny, with a high near 64. Calm wind becoming northwest around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 48. West wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Partly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 65.
Monday Night
Partly cloudy, with a low around 48.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Partly cloudy, with a low around 49.
Wednesday
Mostly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.57°N 122.27°W (Elev. 3 ft)
Last Update:
12:26 am PST Dec 4, 2025
Forecast Valid:
2am PST Dec 4, 2025-6pm PST Dec 10, 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