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

Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Mostly Cloudy

59°F

15°C

Humidity 66%
Wind Speed SW 13 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 12 Apr 04:56 PM PDT
Extended Forecast for

Foster City CA

  • This Afternoon

    This Afternoon: A 30 percent chance of showers. Partly sunny, with a high near 62. West southwest wind around 10 mph.

    High: 62 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers, mainly between 1am and 3am. Partly cloudy, with a low around 48. West wind 5 to 7 mph becoming calm in the evening.

    Low: 48 °F

    Chance
    Showers

  • Monday

    Monday: Sunny, with a high near 66. Light northwest wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50. West wind 6 to 10 mph.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. West wind 5 to 9 mph.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 67.

    High: 67 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of showers. Partly sunny, with a high near 62. West southwest wind around 10 mph.
Tonight
A 40 percent chance of showers, mainly between 1am and 3am. Partly cloudy, with a low around 48. West wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 66. Light northwest wind becoming west northwest 5 to 10 mph in the afternoon.
Monday Night
Mostly clear, with a low around 50. West wind 6 to 10 mph.
Tuesday
Mostly sunny, with a high near 66. West wind 5 to 9 mph.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
Partly sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Sunny, with a high near 68.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 73.
Friday Night
Mostly clear, with a low around 48.
Saturday
Sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Mostly sunny, with a high near 73.
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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:
1:26 pm PDT Apr 12, 2026
Forecast Valid:
5pm PDT Apr 12, 2026-6pm PDT Apr 19, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation