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

71°F

22°C

Humidity 43%
Wind Speed SSE 8 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 19 Mar 05:28 AM PDT
Extended Forecast for

2 Miles WSW Bethel Island CA

Heat Advisory March 19, 06:43am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 19, 06:43am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. West wind around 6 mph becoming calm  after midnight.

    Low: 60 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 88. Light north northwest wind.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Increasing clouds, with a low around 62. West southwest wind 5 to 7 mph.

    Low: 62 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 84. West wind 6 to 8 mph.

    High: 84 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 87. North northwest wind 5 to 7 mph.
Tonight
Clear, with a low around 60. West wind around 6 mph becoming calm after midnight.
Friday
Sunny, with a high near 88. Light north northwest wind.
Friday Night
Increasing clouds, with a low around 62. West southwest wind 5 to 7 mph.
Saturday
Partly sunny, with a high near 84. West wind 6 to 8 mph.
Saturday Night
Mostly clear, with a low around 58.
Sunday
Sunny, with a high near 82.
Sunday Night
Mostly clear, with a low around 55.
Monday
Sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 82.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Bethel Island CA
 38.02°N 121.7°W (Elev. 3 ft)
5:12 am PDT Mar 19, 2026
6am 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