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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

70°F

21°C

Humidity 52%
Wind Speed W 18 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 52°F (11°C)
Visibility 7.00 mi
Last update 20 Jun 03:35 PM PDT
Extended Forecast for

San Carlos CA

  • Tonight

    Tonight: Increasing clouds, with a low around 54. West wind 5 to 10 mph becoming light in the evening.

    Low: 54 °F

    Increasing
    Clouds

  • Sunday

    Sunday: Mostly cloudy through mid morning, then gradual clearing, with a high near 75. Light west southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 75 °F

    Becoming
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 54. West wind 5 to 7 mph becoming calm in the evening.

    Low: 54 °F

    Mostly Clear

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 77. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 77 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56. West wind 5 to 9 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 54. West wind 5 to 10 mph becoming light in the evening.
Sunday
Mostly cloudy through mid morning, then gradual clearing, with a high near 75. Light west southwest wind becoming west 5 to 10 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 54. West wind 5 to 7 mph becoming calm in the evening.
Monday
Partly sunny, then gradually becoming sunny, with a high near 77. Calm wind becoming west 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 56. West wind 5 to 9 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 75.
Friday Night
Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
San Carlos CA
 37.5°N 122.28°W (Elev. 200 ft)
Last Update:
1:26 pm PDT Jun 20, 2026
Forecast Valid:
3pm PDT Jun 20, 2026-6pm PDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

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