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

Heavy Rain in the Southern Appalachians; Fire Weather and Heat in the West; Monitoring Tropical Storm Erin

Heavy to excessive rainfall over the southern Appalachians may bring areas of flooding today. Gusty winds and low relative humidity will bring critical fire weather conditions to parts of the Great Basin and northern Rockies today and Thursday. Hot to extremely hot temperatures are in place through today across parts of the western U.S. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

66°F

19°C

Humidity 70%
Wind Speed S 16 MPH
Barometer NA
Dewpoint 56°F (13°C)
Visibility NA
Last update 13 Aug 11:28 AM PDT
Extended Forecast for

Clayton CA

  • This Afternoon

    This Afternoon: Sunny, with a high near 85. West southwest wind 14 to 16 mph, with gusts as high as 21 mph.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. Southwest wind 15 to 18 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 89. West southwest wind 10 to 13 mph.

    High: 89 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 59. Southwest wind 8 to 15 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 94. West southwest wind 6 to 14 mph.

    High: 94 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 85. West southwest wind 14 to 16 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 58. Southwest wind 15 to 18 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 89. West southwest wind 10 to 13 mph.
Thursday Night
Clear, with a low around 59. Southwest wind 8 to 15 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 94. West southwest wind 6 to 14 mph.
Friday Night
Mostly clear, with a low around 62.
Saturday
Sunny, with a high near 87.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 84.
Sunday Night
Mostly clear, with a low around 59.
Monday
Sunny, with a high near 85.
Monday Night
Clear, with a low around 58.
Tuesday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.96°N 121.97°W (Elev. 249 ft)
Last Update:
11:00 am PDT Aug 13, 2025
Forecast Valid:
12pm PDT Aug 13, 2025-6pm PDT Aug 19, 2025
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

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Chance of Precipitation