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

Hazardous Weather Conditions

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

54°F

12°C

Humidity 76%
Wind Speed S 3 MPH
Barometer 29.81 in (1009.48 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 12 Oct 03:10 AM PDT
Extended Forecast for

Foster City CA

Coastal Flood Advisory October 12, 03:35am until October 13, 03:00pm
Click here for hazard details and duration
Coastal Flood Advisory
  •  
    Coastal Flood Advisory October 12, 03:35am until October 13, 03:00pm

    NOW until 3:00pm Tue

    Coastal Flood Advisory

  • Overnight

    Low: 52 °F

    Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 70. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 70 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. West wind 5 to 7 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 75. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 75 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 52. West northwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.

    Low: 52 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 55.

    Low: 55 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 88.

    High: 88 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 52. Southeast wind around 5 mph.
Columbus Day
Sunny, with a high near 70. Calm wind becoming west northwest 5 to 9 mph in the afternoon.
Monday Night
Mostly clear, with a low around 51. West wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 75. Calm wind becoming northwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
Clear, with a low around 52. West northwest wind 9 to 14 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 55.
Thursday
Sunny, with a high near 88.
Thursday Night
Clear, with a low around 59.
Friday
Sunny, with a high near 89.
Friday Night
Clear, with a low around 59.
Saturday
Sunny, with a high near 86.
Saturday Night
Clear, with a low around 58.
Sunday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.57°N 122.27°W (Elev. 3 ft)
Last Update:
3:12 am PDT Oct 12, 2026
Forecast Valid:
3am PDT Oct 12, 2026-6pm PDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation