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

95°F

35°C

Humidity 19%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Heat Index91°F (33°C)
Last update 05 Oct 04:28 PM PDT
Extended Forecast for

4 Miles S Clayton CA

Heat Advisory October 5, 06:04pm until October 8, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory October 5, 06:04pm until October 8, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Tonight

    Low: 72 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind becoming west northwest 5 to 8 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 71. Southwest wind around 6 mph.

    Low: 71 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 87. Calm wind becoming west 5 to 7 mph in the afternoon.

    High: 87 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 68. Southwest wind 5 to 8 mph.

    Low: 68 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 72. West northwest wind 3 to 5 mph.
Tuesday
Sunny, with a high near 89. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Tuesday Night
Clear, with a low around 71. Southwest wind around 6 mph.
Wednesday
Sunny, with a high near 87. Calm wind becoming west 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 68. Southwest wind 5 to 8 mph.
Thursday
Sunny, with a high near 86.
Thursday Night
Clear, with a low around 67.
Friday
Sunny, with a high near 82.
Friday Night
Clear, with a low around 65.
Saturday
Sunny, with a high near 70.
Saturday Night
Clear, with a low around 55.
Sunday
Sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 53.
Columbus Day
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
Last Update:
1:26 pm PDT Oct 5, 2026
Forecast Valid:
6pm PDT Oct 5, 2026-6pm PDT Oct 12, 2026
 
Forecast Discussion
 
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Additional Resources

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