Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

Lat: 37.77056°NLon: 122.42694°WElev: 150.0ft.

NA

52°F

11°C

Humidity 75%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 20 Jan 07:43 PM PST
Extended Forecast for

San Francisco CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. North wind 3 to 5 mph.

    Low: 50 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Cloudy, with a high near 60. Light north wind.

    High: 60 °F

    Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 50. Calm wind.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 60. Calm wind becoming west around 5 mph in the afternoon.

    High: 60 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 49. West southwest wind 3 to 6 mph.

    Low: 49 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 59.

    High: 59 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 50. North wind 3 to 5 mph.
Wednesday
Cloudy, with a high near 60. Light north wind.
Wednesday Night
Mostly cloudy, with a low around 50. Calm wind.
Thursday
Mostly cloudy, with a high near 60. Calm wind becoming west around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 49. West southwest wind 3 to 6 mph.
Friday
Mostly sunny, with a high near 59.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 46.
Sunday
Partly sunny, with a high near 60.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Partly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 46.
Tuesday
Partly sunny, with a high near 60.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
San Francisco CA
 37.77°N 122.41°W (Elev. 131 ft)
7:24 pm PST Jan 20, 2026
8pm PST Jan 20, 2026-6pm PST Jan 27, 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