Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

82°F

28°C

Humidity 28%
Wind Speed E 3 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 16 Mar 03:35 PM PDT
Extended Forecast for

Foster City CA

Heat Advisory until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Light west northwest wind.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. Light west northwest wind.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 59.

    Low: 59 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 85. Northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 57. Light west northwest wind.
Tuesday
Sunny, with a high near 89. Calm wind becoming north northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 58. Light west northwest wind.
Wednesday
Sunny, with a high near 88. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 59.
Thursday
Sunny, with a high near 89.
Thursday Night
Clear, with a low around 61.
Friday
Sunny, with a high near 90.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 80.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 70.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.57°N 122.27°W (Elev. 3 ft)
1:25 pm PDT Mar 16, 2026
3pm PDT Mar 16, 2026-6pm PDT Mar 23, 2026
 
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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