Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

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

NA

47°F

8°C

Humidity 88%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 08 Dec 07:43 PM PST
Extended Forecast for

San Francisco CA

  • Tonight

    Tonight: Patchy fog between 2am and 3am.  Otherwise, mostly clear, with a low around 47. Light northwest wind.

    Low: 47 °F

    Patchy Fog

  • Tuesday

    Tuesday: Sunny, with a high near 56. North wind 3 to 6 mph.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 48. Light north northeast wind.

    Low: 48 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63. North wind around 6 mph.

    High: 63 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. Light north northeast wind.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Friday Night

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

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog between 2am and 3am. Otherwise, mostly clear, with a low around 47. Light northwest wind.
Tuesday
Sunny, with a high near 56. North wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 48. Light north northeast wind.
Wednesday
Sunny, with a high near 63. North wind around 6 mph.
Wednesday Night
Mostly clear, with a low around 49. Light north northeast wind.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 47.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 62.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 52.
Monday
A chance of rain. Partly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
San Francisco CA
 37.77°N 122.41°W (Elev. 131 ft)
12:26 pm PST Dec 8, 2025
8pm PST Dec 8, 2025-6pm PST Dec 15, 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