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

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Clear

61°F

16°C

Humidity 44%
Wind Speed N 11 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 16 Apr 11:15 AM PDT
Extended Forecast for

Foster City CA

  • Today

    Today: Sunny, with a high near 70. North northwest wind 8 to 13 mph, with gusts as high as 20 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 49. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 72. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. West northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 75. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain

  • Monday

    Monday: Rain likely. Mostly cloudy, with a high near 68.

    High: 68 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 70. North northwest wind 8 to 13 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 49. Northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Friday
Sunny, with a high near 72. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 49. West northwest wind 5 to 8 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 75. Calm wind becoming west northwest around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 50.
Sunday
Partly sunny, with a high near 71.
Sunday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 52.
Monday
Rain likely. Mostly cloudy, with a high near 68.
Monday Night
A chance of rain. Mostly cloudy, with a low around 51.
Tuesday
Rain likely. Mostly cloudy, with a high near 67.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 51.
Wednesday
A slight chance of rain. Mostly sunny, with a high near 68.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.54°N 122.29°W (Elev. 151 ft)
Last Update:
11:26 am PDT Apr 16, 2026
Forecast Valid:
11am PDT Apr 16, 2026-6pm PDT Apr 22, 2026
 
Forecast Discussion
 
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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

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation