Winter Weather Across Portions of the Mid-Atlantic; Heavy Rain Along the Gulf Coast and Southeast

A storm system will continue to slowly move through the Gulf Coast and Southeast U.S. over the next couple of days, bringing a heavy rainfall threat through the weekend. Isolated instances of flooding may occur. On the north side of this storm system, colder air will support areas of mixed wintry precipitation and light snow from the Tennessee Valley to the Mid-Atlantic Friday. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

48°F

9°C

Humidity 87%
Wind Speed S 3 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 05 Dec 12:35 AM PST
Extended Forecast for

San Mateo CA

Coastal Flood Advisory December 5, 12:55am until December 7, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory December 5, 12:55am until December 7, 03:00pm

    NOW until 3:00pm Sun

    Coastal Flood Advisory

  • Overnight

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 62. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 62 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. West wind around 5 mph becoming calm  in the evening.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 62. Calm wind becoming northwest around 6 mph in the morning.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 50. West northwest wind 3 to 6 mph.

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

  • Sunday Night

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

    Low: 49 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 46. Calm wind.
Friday
Sunny, with a high near 62. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 49. West wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 62. Calm wind becoming northwest around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 50. West northwest wind 3 to 6 mph.
Sunday
Partly sunny, with a high near 64.
Sunday Night
Partly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 50.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 51.
Thursday
Mostly sunny, with a high near 66.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
San Mateo CA
 37.58°N 122.33°W (Elev. 33 ft)
12:26 am PST Dec 5, 2025
12am PST Dec 5, 2025-6pm PST Dec 11, 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