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

73°F

23°C

Humidity 54%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 55°F (13°C)
Visibility NA
Last update 20 Mar 02:28 AM PDT
Extended Forecast for

4 Miles ENE Clayton CA

Heat Advisory March 20, 02:54am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 20, 02:54am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 84. North northeast wind 5 to 7 mph becoming northwest in the afternoon.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. West southwest wind 7 to 10 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 79. West wind around 10 mph, with gusts as high as 18 mph.

    High: 79 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 54. West southwest wind 13 to 15 mph, with gusts as high as 23 mph.

    Low: 54 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 77.

    High: 77 °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 76.

    High: 76 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 62. North wind around 6 mph.
Friday
Sunny, with a high near 84. North northeast wind 5 to 7 mph becoming northwest in the afternoon.
Friday Night
Mostly clear, with a low around 59. West southwest wind 7 to 10 mph.
Saturday
Mostly sunny, with a high near 79. West wind around 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 54. West southwest wind 13 to 15 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
Sunny, with a high near 74.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ENE Clayton CA
 37.95°N 121.88°W (Elev. 1358 ft)
2:22 am PDT Mar 20, 2026
2am PDT Mar 20, 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