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

Air Quality Concerns; Fire Weather; Extreme Heat; Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin. Heavy rainfall and flash flooding possible for the Southeast through Monday. For Hawaii, gusty trade winds a drier weather could result in any fires that start to spread rapidly. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

77°F

25°C

Humidity 38%
Wind Speed S 20 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Heat Index78°F (26°C)
Last update 03 Aug 02:28 PM PDT
Extended Forecast for

Antioch CA

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 84. West southwest wind around 15 mph, with gusts as high as 24 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 61. West southwest wind 10 to 14 mph, with gusts as high as 26 mph.

    Low: 61 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 88. West wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 88 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 58. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Southwest wind 7 to 10 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 64.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 84. West southwest wind around 15 mph, with gusts as high as 24 mph.
Tonight
Clear, with a low around 61. West southwest wind 10 to 14 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 88. West wind 9 to 14 mph, with gusts as high as 23 mph.
Monday Night
Clear, with a low around 58. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 88. Southwest wind 7 to 10 mph.
Tuesday Night
Clear, with a low around 61.
Wednesday
Sunny, with a high near 94.
Wednesday Night
Clear, with a low around 64.
Thursday
Sunny, with a high near 90.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 91.
Friday Night
Clear, with a low around 63.
Saturday
Sunny, with a high near 91.
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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:
1:42 pm PDT Aug 3, 2025
Forecast Valid:
2pm PDT Aug 3, 2025-6pm PDT Aug 9, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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Chance of Precipitation