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

BLACK DIAMOND (PIBC1)

Lat: 37.95°NLon: 121.88444°WElev: 1600.0ft.

NA

79°F

26°C

Humidity 46%
Wind Speed N 5 MPH
Barometer NA
Dewpoint 56°F (13°C)
Visibility NA
Heat Index80°F (27°C)
Last update 19 Mar 03:28 PM PDT
Extended Forecast for

3 Miles NE Brentwood CA

Heat Advisory March 19, 04:17pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 19, 04:17pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 57 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 57. West southwest wind around 5 mph.

    Low: 57 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 87. West northwest wind 5 to 9 mph.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. West southwest wind 6 to 9 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 51.

    Low: 51 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 57. North northwest wind around 6 mph becoming calm after midnight.
Friday
Sunny, with a high near 91. Calm wind becoming north northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 57. West southwest wind around 5 mph.
Saturday
Mostly sunny, with a high near 87. West northwest wind 5 to 9 mph.
Saturday Night
Mostly clear, with a low around 55. West southwest wind 6 to 9 mph.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 53.
Thursday
Sunny, with a high near 80.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Brentwood CA
 37.96°N 121.65°W (Elev. 20 ft)
2:37 pm PDT Mar 19, 2026
4pm PDT Mar 19, 2026-6pm PDT Mar 26, 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