Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

54°F

12°C

Humidity 71%
Wind Speed N 0 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 29 Jan 11:35 PM PST
Extended Forecast for

Foster City CA

Coastal Flood Advisory January 29, 11:47pm until February 1, 12:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory January 29, 11:47pm until February 1, 12:00pm

    NOW until 12:00pm Sun

    Coastal Flood Advisory

  • Tonight

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 66. Calm wind becoming north around 6 mph in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Friday Night

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

    Low: 46 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 68. Light east wind.

    High: 68 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 47. Calm wind.

    Low: 47 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. Calm wind.
Friday
Mostly sunny, with a high near 66. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 46. East northeast wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 68. Light east wind.
Saturday Night
Partly cloudy, with a low around 47. Calm wind.
Sunday
Mostly cloudy, with a high near 63.
Sunday Night
Partly cloudy, with a low around 48.
Monday
Mostly sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 45.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Mostly clear, with a low around 46.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 47.
Thursday
Sunny, with a high near 69.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.54°N 122.29°W (Elev. 151 ft)
12:27 pm PST Jan 29, 2026
11pm PST Jan 29, 2026-6pm PST Feb 5, 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