Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Hazardous Weather Conditions

Current conditions at

San Francisco, San Francisco International Airport (KSFO)

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

Partly Cloudy

52°F

11°C

Humidity 81%
Wind Speed W 4 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 19 Mar 07:35 AM PDT
Extended Forecast for

2 Miles SE Hillsborough CA

Heat Advisory March 19, 07:57am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 19, 07:57am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 59. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 59 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 57. West wind 3 to 6 mph.

    Low: 57 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Mostly sunny, with a high near 77. Light west wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 90. Calm wind becoming north around 6 mph in the afternoon.
Tonight
Clear, with a low around 59. West northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 88. Calm wind becoming northwest around 6 mph in the afternoon.
Friday Night
Increasing clouds, with a low around 57. West wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 77. Light west wind becoming west northwest 5 to 9 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Sunny, with a high near 75.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Hillsborough CA
 37.54°N 122.32°W (Elev. 194 ft)
5:12 am PDT Mar 19, 2026
7am PDT Mar 19, 2026-6pm PDT Mar 25, 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