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

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Hazardous Weather Conditions

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

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

NA

60°F

16°C

Humidity 34%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 29 Dec 12:43 PM PST
Extended Forecast for

San Francisco CA

Coastal Flood Advisory December 31, 05:00am until January 4, 02:00pm
Click here for hazard details and duration
Coastal Flood Advisory

  • This Afternoon

    This Afternoon: Sunny, with a high near 59. North northeast wind around 10 mph.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 42. North northeast wind 6 to 8 mph.

    Low: 42 °F

    Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 56. Northeast wind 8 to 10 mph.

    High: 56 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 48. Northeast wind 7 to 9 mph.

    Low: 48 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly after 10am. High near 55. East northeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 49. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 49 °F

    Rain

  • New Year's Day

    New Year's Day: Rain. High near 58. Chance of precipitation is 90%.

    High: 58 °F

    Rain

  • Thursday Night

    Thursday Night: Rain. Cloudy, with a low around 53.

    Low: 53 °F

    Rain

  • Friday

    Friday: Rain. Cloudy, with a high near 59.

    High: 59 °F

    Rain

Detailed Forecast

This Afternoon
Sunny, with a high near 59. North northeast wind around 10 mph.
Tonight
Clear, with a low around 42. North northeast wind 6 to 8 mph.
Tuesday
Increasing clouds, with a high near 56. Northeast wind 8 to 10 mph.
Tuesday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 48. Northeast wind 7 to 9 mph.
Wednesday
Rain, mainly after 10am. High near 55. East northeast wind 7 to 9 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain. Low around 49. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
New Year's Day
Rain. High near 58. Chance of precipitation is 90%.
Thursday Night
Rain. Cloudy, with a low around 53.
Friday
Rain. Cloudy, with a high near 59.
Friday Night
Rain. Cloudy, with a low around 49.
Saturday
Rain. Mostly cloudy, with a high near 56.
Saturday Night
Rain likely. Mostly cloudy, with a low around 47.
Sunday
Rain likely. Mostly cloudy, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Francisco CA
 37.75°N 122.43°W (Elev. 197 ft)
Last Update:
12:27 pm PST Dec 29, 2025
Forecast Valid:
1pm PST Dec 29, 2025-6pm PST Jan 4, 2026
 
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