Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

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

NA

65°F

18°C

Humidity 39%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 19 Jan 03:43 PM PST
Extended Forecast for

San Francisco CA

  • Tonight

    Tonight: Patchy fog between 11pm and 5am.  Otherwise, partly cloudy, with a low around 47. North wind around 5 mph.

    Low: 47 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog between 8am and 9am.  Otherwise, partly sunny, with a high near 61. North northeast wind around 6 mph.

    High: 61 °F

    Patchy Fog
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49. North wind 3 to 5 mph.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 60. Light northeast wind.

    High: 60 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 49. Light west wind.

    Low: 49 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 61.

    High: 61 °F

    Partly Sunny

  • Thursday Night

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

    Low: 48 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46.

    Low: 46 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog between 11pm and 5am. Otherwise, partly cloudy, with a low around 47. North wind around 5 mph.
Tuesday
Patchy fog between 8am and 9am. Otherwise, partly sunny, with a high near 61. North northeast wind around 6 mph.
Tuesday Night
Mostly cloudy, with a low around 49. North wind 3 to 5 mph.
Wednesday
Mostly cloudy, with a high near 60. Light northeast wind.
Wednesday Night
Mostly cloudy, with a low around 49. Light west wind.
Thursday
Partly sunny, with a high near 61.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 46.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 47.
Sunday
Partly sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 47.
Monday
Partly sunny, with a high near 62.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
San Francisco CA
 37.75°N 122.4°W (Elev. 197 ft)
1:15 pm PST Jan 19, 2026
4pm PST Jan 19, 2026-6pm PST Jan 26, 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