Heat Wave Continues in the West; Critical Fire Weather Conditions in the High 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. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Hazardous Weather Conditions

Current conditions at

SAN FRANCISCO DOWNTOWN (SFOC1)

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

NA

63°F

17°C

Humidity 66%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 18 Mar 01:43 AM PDT
Extended Forecast for

San Francisco CA

Heat Advisory March 18, 02:20am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 18, 02:20am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 58 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58. West wind around 6 mph becoming calm  in the evening.

    Low: 58 °F

    Clear

  • Thursday

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

    High: 88 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

Detailed Forecast

Overnight
Mostly clear, with a low around 58. Calm wind.
Wednesday
Sunny, with a high near 86. Calm wind becoming west northwest around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 58. West wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 88. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. West wind 5 to 7 mph becoming calm in the evening.
Friday
Sunny, with a high near 85.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Partly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 53.
Monday
Mostly sunny, with a high near 70.
Monday Night
Mostly cloudy, with a low around 53.
Tuesday
A slight chance of rain. Partly sunny, with a high near 72.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
San Francisco CA
 37.77°N 122.41°W (Elev. 131 ft)
1:59 am PDT Mar 18, 2026
2am PDT Mar 18, 2026-6pm PDT Mar 24, 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