Dangerous Heat in the West; Coastal Flooding & High Rip Current Risk through the Weekend on the East Coast; Flash Flooding Concerns in the Southeast and Southwest

A dangerous, record heat wave continues across portions of the West through Tuesday. High rip current risk and dangerous surf continue through the weekend. There are flash flooding concerns through the weekend for portions of the Southeast and Southwest. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

85°F

29°C

Humidity 28%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index83°F (28°C)
Last update 22 Aug 11:28 AM PDT
Extended Forecast for

Antioch CA

Heat Advisory August 22, 12:31pm until August 23, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 22, 12:31pm until August 23, 09:00pm

    NOW until 9:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 99 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 68. West wind 8 to 15 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 94. West northwest wind 11 to 14 mph, with gusts as high as 18 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. West wind 8 to 17 mph, with gusts as high as 22 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 90. West northwest wind 9 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. Northwest wind 11 to 14 mph.
Tonight
Partly cloudy, with a low around 68. West wind 8 to 15 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 94. West northwest wind 11 to 14 mph, with gusts as high as 18 mph.
Saturday Night
Mostly clear, with a low around 66. West wind 8 to 17 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 90. West northwest wind 9 to 15 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 64.
Monday
Sunny, with a high near 90.
Monday Night
Clear, with a low around 65.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 65.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
Antioch CA
 38°N 121.81°W (Elev. 36 ft)
2:50 am PDT Aug 22, 2025
12pm PDT Aug 22, 2025-6pm PDT Aug 28, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database