National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

76°F

24°C

Humidity 43%
Wind Speed S 14 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Heat Index78°F (26°C)
Last update 28 Jul 12:28 PM PDT
Extended Forecast for

Antioch CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 90. West wind 9 to 11 mph, with gusts as high as 20 mph.

    High: 90 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 62. West wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 62 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 92. West wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 62. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 62 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 93. West southwest wind 5 to 11 mph, with gusts as high as 18 mph.

    High: 93 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

Detailed Forecast

This Afternoon
Sunny, with a high near 90. West wind 9 to 11 mph, with gusts as high as 20 mph.
Tonight
Clear, with a low around 62. West wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 92. West wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 62. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 93. West southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Thursday Night
Clear, with a low around 62.
Friday
Sunny and hot, with a high near 97.
Friday Night
Clear, with a low around 65.
Saturday
Sunny and hot, with a high near 96.
Saturday Night
Clear, with a low around 65.
Sunday
Sunny and hot, with a high near 96.
Sunday Night
Clear, with a low around 65.
Monday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Antioch CA
 38°N 121.81°W (Elev. 36 ft)
Last Update:
11:26 am PDT Jul 28, 2026
Forecast Valid:
12pm PDT Jul 28, 2026-6pm PDT Aug 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation