Record Heat Remains in Place This Week; Severe Thunderstorms Possible Thursday

Record warmth will persist across portions of California, the Southwest U.S., the central Great Basin and return back to areas of the central/southern Plains and mid-lower Mississippi Valley this week. Over 200 new record high temperatures are forecast. Severe thunderstorms are being outlooked on Thursday over the Midwest. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

haze

63°F

17°C

Humidity 77%
Wind Speed ENE 4 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 23 Mar 11:20 AM PDT
Extended Forecast for

Foster City CA

  • Today

    Today: Sunny, with a high near 76. West northwest wind 3 to 7 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 52. West wind around 6 mph becoming calm  in the evening.

    Low: 52 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 51. West northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 51 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 71 °F

    Sunny

  • Wednesday Night

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

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 76. West northwest wind 3 to 7 mph.
Tonight
Clear, with a low around 52. West wind around 6 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 78. Calm wind becoming west northwest around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 51. West northwest wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 71. Calm wind becoming west northwest 5 to 9 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 73.
Thursday Night
Mostly cloudy, with a low around 51.
Friday
Partly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 73.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.54°N 122.29°W (Elev. 151 ft)
8:27 am PDT Mar 23, 2026
11am PDT Mar 23, 2026-6pm PDT Mar 29, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database