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

Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Mostly Cloudy

60°F

16°C

Humidity 83%
Wind Speed S 11 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 13 Aug 04:11 AM PDT
Extended Forecast for

Foster City CA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 73. Southwest wind 7 to 15 mph, with gusts as high as 23 mph.

    High: 73 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Increasing clouds, with a low around 59. West southwest wind 5 to 14 mph, with gusts as high as 21 mph.

    Low: 59 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 72. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 72 °F

    Gradual
    Clearing

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 59. West wind 5 to 14 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 73. Light west southwest wind becoming west 5 to 10 mph in the afternoon.

    High: 73 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 59.

    Low: 59 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 73.

    High: 73 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 73. Southwest wind 7 to 15 mph, with gusts as high as 23 mph.
Tonight
Increasing clouds, with a low around 59. West southwest wind 5 to 14 mph, with gusts as high as 21 mph.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 72. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Friday Night
Mostly cloudy, with a low around 59. West wind 5 to 14 mph, with gusts as high as 20 mph.
Saturday
Partly sunny, with a high near 73. Light west southwest wind becoming west 5 to 10 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 74.
Sunday Night
Mostly cloudy, with a low around 59.
Monday
Mostly cloudy, with a high near 73.
Monday Night
Mostly cloudy, with a low around 59.
Tuesday
Partly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Partly sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.57°N 122.27°W (Elev. 3 ft)
Last Update:
1:26 am PDT Aug 13, 2026
Forecast Valid:
4am PDT Aug 13, 2026-6pm PDT Aug 19, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation