Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. 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 51%
Wind Speed N 3 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 20 Mar 04:28 AM PDT
Extended Forecast for

2 Miles WSW Bethel Island CA

Heat Advisory March 20, 05:24am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 20, 05:24am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Today

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. West wind around 6 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 83. West northwest wind 6 to 9 mph.

    High: 83 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. West southwest wind 9 to 11 mph, with gusts as high as 18 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 82. West wind around 8 mph.

    High: 82 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 86. Calm wind becoming west northwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 60. West wind around 6 mph.
Saturday
Mostly sunny, with a high near 83. West northwest wind 6 to 9 mph.
Saturday Night
Mostly clear, with a low around 57. West southwest wind 9 to 11 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 82. West wind around 8 mph.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Sunny, with a high near 80.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 56.
Thursday
Sunny, with a high near 79.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Bethel Island CA
 38.02°N 121.7°W (Elev. 3 ft)
2:22 am PDT Mar 20, 2026
5am 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