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

Heavy Rainfall Threat for Portions of Mid-Atlantic and Northeast; Heat Linger for Southeast and Expands for the West

Moisture and nearby frontal boundary will focus more showers and thunderstorms for portions of the Mid-Atlantic and Northeast today. Rainfall could be locally heavy resulting instances of flash flooding. Meanwhile, the heat lingers for areas of the Southeast and expands across the Western U.S. the next several days. Between these areas, severe thunderstorms possible for the Plains and Midwest. 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 74%
Wind Speed W 19 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 06 Jul 06:10 PM PDT
Extended Forecast for

Foster City CA

  • Tonight

    Tonight: Increasing clouds, with a low around 56. West wind 6 to 11 mph.

    Low: 56 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 69. West wind 6 to 14 mph, with gusts as high as 21 mph.

    High: 69 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 55. West wind 8 to 14 mph, with gusts as high as 21 mph.

    Low: 55 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 72. West wind 6 to 11 mph.

    High: 72 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 56. West southwest wind 6 to 11 mph.

    Low: 56 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Friday Night

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

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Tonight
Increasing clouds, with a low around 56. West wind 6 to 11 mph.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 69. West wind 6 to 14 mph, with gusts as high as 21 mph.
Tuesday Night
Increasing clouds, with a low around 55. West wind 8 to 14 mph, with gusts as high as 21 mph.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 72. West wind 6 to 11 mph.
Wednesday Night
Partly cloudy, with a low around 56. West southwest wind 6 to 11 mph.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 56.
Saturday
Mostly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
Partly sunny, with a high near 77.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.55°N 122.27°W (Elev. 33 ft)
Last Update:
1:26 pm PDT Jul 6, 2026
Forecast Valid:
6pm PDT Jul 6, 2026-6pm PDT Jul 13, 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