Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

63°F

17°C

Humidity 82%
Wind Speed W 9 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 05 Oct 04:00 AM PDT
Extended Forecast for

Foster City CA

Heat Advisory October 5, 04:25am until October 7, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 5, 04:25am until October 7, 10:00pm

    NOW until 10:00pm Wed

    Heat Advisory

  • Today

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 62. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 90. Calm wind becoming northwest 5 to 7 mph in the afternoon.

    High: 90 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 63. West northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming west northwest 5 to 7 mph in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 89. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Tonight
Clear, with a low around 62. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 90. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Tuesday Night
Clear, with a low around 63. West northwest wind 5 to 9 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 89. Calm wind becoming west northwest 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 60.
Friday
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 57. Breezy.
Sunday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.57°N 122.27°W (Elev. 3 ft)
1:26 am PDT Oct 5, 2026
4am PDT Oct 5, 2026-6pm PDT Oct 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