Severe Weather and Heavy Rain from the Great Lakes to the Mid-Atlantic; Heat Persists in the East

Widespread strong thunderstorms with damaging winds and locally heavy rain are expected from the Upper Ohio Valley into the southern Mid-Atlantic today and portions of the central Appalachians and Carolinas on Saturday. Monsoonal moisture will bring a flash flooding threat to the Desert Southwest. Sweltering heat persists from the Plains to the southern Mid-Atlantic through tonight. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

61°F

16°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 05 Sep 08:20 AM PDT
Extended Forecast for

San Carlos Airport CA

  • Today

    Today: Sunny, with a high near 74. Light and variable wind becoming west northwest 10 to 15 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 74 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light  after midnight.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Patchy fog before 7am.  Otherwise, sunny, with a high near 73. Light west wind increasing to 11 to 16 mph in the morning. Winds could gust as high as 23 mph.

    High: 73 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog after 4am.  Otherwise, mostly clear, with a low around 56. West wind 11 to 16 mph becoming light west southwest  after midnight. Winds could gust as high as 24 mph.

    Low: 56 °F

    Mostly Clear
    then Patchy
    Fog

  • Labor Day

    Labor Day: Patchy fog before 7am.  Otherwise, sunny, with a high near 83. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Monday Night

    Monday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Tuesday

    Tuesday: A 20 percent chance of rain after 11am.  Mostly sunny, with a high near 84.

    High: 84 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before 11pm.  Mostly cloudy, with a low around 63.

    Low: 63 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 87.

    High: 87 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 74. Light and variable wind becoming west northwest 10 to 15 mph in the afternoon. Winds could gust as high as 21 mph.
Tonight
Mostly clear, with a low around 57. West wind 5 to 10 mph becoming light after midnight.
Sunday
Patchy fog before 7am. Otherwise, sunny, with a high near 73. Light west wind increasing to 11 to 16 mph in the morning. Winds could gust as high as 23 mph.
Sunday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 56. West wind 11 to 16 mph becoming light west southwest after midnight. Winds could gust as high as 24 mph.
Labor Day
Patchy fog before 7am. Otherwise, sunny, with a high near 83. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Monday Night
Clear, with a low around 60.
Tuesday
A 20 percent chance of rain after 11am. Mostly sunny, with a high near 84.
Tuesday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 63.
Wednesday
Partly sunny, with a high near 87.
Wednesday Night
Partly cloudy, with a low around 66.
Thursday
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 64.
Friday
Mostly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
San Carlos Airport CA
 37.52°N 122.26°W (Elev. 98 ft)
8:21 am PDT Sep 5, 2026
8am PDT Sep 5, 2026-6pm PDT Sep 11, 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