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

Hazardous Weather Conditions

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

83°F

28°C

Humidity 20%
Wind Speed S 9 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Heat Index81°F (27°C)
Last update 06 Oct 10:28 PM PDT
Extended Forecast for

Antioch CA

Heat Advisory October 6, 11:17pm until October 8, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 6, 11:17pm until October 8, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Tonight

    Low: 67 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Light west wind becoming west northwest 5 to 10 mph in the morning.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65. West wind 3 to 7 mph.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97. West wind 5 to 8 mph.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 64. West southwest wind 6 to 9 mph.

    Low: 64 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 67. West wind around 6 mph.
Wednesday
Sunny and hot, with a high near 98. Light west wind becoming west northwest 5 to 10 mph in the morning.
Wednesday Night
Clear, with a low around 65. West wind 3 to 7 mph.
Thursday
Sunny and hot, with a high near 97. West wind 5 to 8 mph.
Thursday Night
Clear, with a low around 64. West southwest wind 6 to 9 mph.
Friday
Sunny, with a high near 90.
Friday Night
Clear, with a low around 62.
Saturday
Sunny, with a high near 75.
Saturday Night
Clear, with a low around 56.
Sunday
Sunny, with a high near 72.
Sunday Night
Mostly clear, with a low around 56.
Columbus Day
Sunny, with a high near 75.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 76.
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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:
9:12 pm PDT Oct 6, 2026
Forecast Valid:
11pm PDT Oct 6, 2026-6pm PDT Oct 13, 2026
 
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Additional Resources

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Chance of Precipitation