Early Heat Wave in the West; Fire Concerns in the Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Hazardous Weather Conditions

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

Lat: 37.77056°NLon: 122.42694°WElev: 150.0ft.

NA

61°F

16°C

Humidity 62%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 17 Mar 07:43 AM PDT
Extended Forecast for

3 Miles SE San Francisco CA

Heat Advisory March 17, 08:02am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 17, 08:02am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 59 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79. Light northwest wind.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 80. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 80 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 80. Calm wind becoming north northwest around 6 mph in the afternoon.
Tonight
Mostly clear, with a low around 59. West northwest wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 79. Light northwest wind.
Wednesday Night
Clear, with a low around 60. West northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 80. Calm wind becoming north northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 56.
Sunday
Mostly sunny, with a high near 66.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 65.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE San Francisco CA
 37.73°N 122.37°W (Elev. 3 ft)
1:54 am PDT Mar 17, 2026
8am PDT Mar 17, 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