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

62°F

17°C

Humidity 74%
Wind Speed NNE 3 MPH
Barometer 30.08 in (1018.63 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 16 Mar 09:56 AM 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

  • Today

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Light and variable wind.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 58. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

Detailed Forecast

Today
Sunny, with a high near 85. Calm wind becoming north northwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 57. Light and variable wind.
Tuesday
Sunny, with a high near 89. Calm wind becoming north northwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 89. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Clear, with a low around 60.
Thursday
Sunny, with a high near 89.
Thursday Night
Clear, with a low around 60.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 58.
Saturday
Partly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Sunny, with a high near 74.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Foster City CA
 37.54°N 122.29°W (Elev. 151 ft)
8:08 am PDT Mar 16, 2026
10am PDT Mar 16, 2026-6pm PDT Mar 22, 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