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. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend 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

74°F

23°C

Humidity 45%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 19 Mar 08:28 PM PDT
Extended Forecast for

2 Miles ESE Antioch CA

Heat Advisory March 19, 09:33pm until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 19, 09:33pm until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Tonight

    Low: 60 °F

    Clear

  • Friday

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

    High: 91 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. West southwest wind around 6 mph.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 86. West southwest wind 5 to 8 mph.

    High: 86 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. West southwest wind 7 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 52.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 60. West wind around 5 mph becoming calm after midnight.
Friday
Sunny, with a high near 91. Calm wind becoming northwest around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58. West southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 86. West southwest wind 5 to 8 mph.
Saturday Night
Mostly clear, with a low around 55. West southwest wind 7 to 9 mph.
Sunday
Sunny, with a high near 85.
Sunday Night
Mostly clear, with a low around 52.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 78.
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:
2 Miles ESE Antioch CA
 37.99°N 121.77°W (Elev. 200 ft)
2:37 pm PDT Mar 19, 2026
9pm 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