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, San Francisco International Airport (KSFO)

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

Partly Cloudy

50°F

10°C

Humidity 87%
Wind Speed N 4 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 08 Dec 07:00 PM PST
Extended Forecast for

San Carlos Airport CA

  • Tonight

    Tonight: Patchy fog before 11pm, then patchy fog after midnight.  Otherwise, partly cloudy, with a low around 45. Light northwest wind.

    Low: 45 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 62. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Patchy fog after 1am.  Otherwise, mostly clear, with a low around 47. Light and variable wind.

    Low: 47 °F

    Mostly Clear
    then Patchy
    Fog

  • Wednesday

    Wednesday: Patchy fog before 7am.  Otherwise, sunny, with a high near 66. Light and variable wind becoming north northwest around 6 mph in the morning.

    High: 66 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. Calm wind.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Thursday Night

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

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Friday Night

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

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog before 11pm, then patchy fog after midnight. Otherwise, partly cloudy, with a low around 45. Light northwest wind.
Tuesday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 62. Calm wind becoming north northwest around 6 mph in the afternoon.
Tuesday Night
Patchy fog after 1am. Otherwise, mostly clear, with a low around 47. Light and variable wind.
Wednesday
Patchy fog before 7am. Otherwise, sunny, with a high near 66. Light and variable wind becoming north northwest around 6 mph in the morning.
Wednesday Night
Mostly clear, with a low around 48. Calm wind.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 47.
Saturday
Patchy fog before 7am. Otherwise, sunny, with a high near 66.
Saturday Night
Patchy fog. Otherwise, partly cloudy, with a low around 48.
Sunday
Patchy fog. Otherwise, partly sunny, with a high near 64.
Sunday Night
Patchy fog. Otherwise, mostly cloudy, with a low around 50.
Monday
A slight chance of rain. Patchy fog. Otherwise, partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
San Carlos Airport CA
 37.55°N 122.24°W (Elev. 3 ft)
12:26 pm PST Dec 8, 2025
7pm 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