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

81°F

27°C

Humidity 19%
Wind Speed SSE 8 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Heat Index79°F (26°C)
Last update 08 Oct 03:28 AM PDT
Extended Forecast for

Antioch CA

Heat Advisory October 8, 03:52am until October 8, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 8, 03:52am until October 8, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Overnight

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90. West northwest wind 6 to 9 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 65. West wind 7 to 9 mph.

    Low: 65 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 85. West wind 9 to 14 mph, with gusts as high as 23 mph.

    High: 85 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 62. Southwest wind 14 to 18 mph, with gusts as high as 25 mph.

    Low: 62 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 65. West northwest wind around 8 mph.
Thursday
Sunny, with a high near 90. West northwest wind 6 to 9 mph.
Thursday Night
Clear, with a low around 65. West wind 7 to 9 mph.
Friday
Sunny, with a high near 85. West wind 9 to 14 mph, with gusts as high as 23 mph.
Friday Night
Clear, with a low around 62. Southwest wind 14 to 18 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 70.
Saturday Night
Clear, with a low around 56.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 57.
Columbus Day
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 73.
Tuesday Night
Clear, with a low around 56.
Wednesday
Sunny, with a high near 75.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Antioch CA
 38.01°N 121.78°W (Elev. 23 ft)
Last Update:
1:26 am PDT Oct 8, 2026
Forecast Valid:
3am PDT Oct 8, 2026-6pm PDT Oct 14, 2026
 
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