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 >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

77°F

25°C

Humidity 23%
Wind Speed SE 4 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Heat Index77°F (25°C)
Last update 21 Mar 01:28 AM PDT
Extended Forecast for

5 Miles SSW Antioch CA

  • Overnight

    Overnight: Partly cloudy, with a low around 60. West southwest wind around 6 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 57. West wind 8 to 11 mph, with gusts as high as 21 mph.

    Low: 57 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 79. West northwest wind 6 to 8 mph.

    High: 79 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 53. Southwest wind around 10 mph.

    Low: 53 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 60. West southwest wind around 6 mph.
Saturday
Mostly sunny, with a high near 82. West northwest wind 5 to 10 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 57. West wind 8 to 11 mph, with gusts as high as 21 mph.
Sunday
Sunny, with a high near 79. West northwest wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 53. Southwest wind around 10 mph.
Monday
Sunny, with a high near 78.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
Sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SSW Antioch CA
 37.94°N 121.82°W (Elev. 600 ft)
2:22 am PDT Mar 21, 2026
2am PDT Mar 21, 2026-6pm PDT Mar 27, 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