Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

N/A

Humidity 25%
Wind Speed SE 9 MPH
Barometer NA
Dewpoint N/A
Visibility NA
Last update 10 Aug 02:28 AM PDT
Extended Forecast for

Clayton CA

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 55. West southwest wind 5 to 10 mph becoming light  in the evening. Winds could gust as high as 22 mph.

    Low: 55 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 78. West wind 5 to 10 mph, with gusts as high as 18 mph.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 52. West wind 5 to 9 mph becoming calm  in the evening. Winds could gust as high as 18 mph.

    Low: 52 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81. Calm wind becoming west 5 to 9 mph in the afternoon.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 53. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 53 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 53.

    Low: 53 °F

    Clear

  • Labor Day

    Labor Day: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 55. West southwest wind 5 to 10 mph becoming light in the evening. Winds could gust as high as 22 mph.
Friday
Sunny, with a high near 78. West wind 5 to 10 mph, with gusts as high as 18 mph.
Friday Night
Mostly clear, with a low around 52. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 18 mph.
Saturday
Sunny, with a high near 81. Calm wind becoming west 5 to 9 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 53. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 80.
Sunday Night
Clear, with a low around 53.
Labor Day
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 58.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Partly cloudy, with a low around 58.
Wednesday
Mostly sunny, with a high near 90.
Wednesday Night
A slight chance of rain. Partly cloudy, with a low around 61.
Thursday
A slight chance of rain. Mostly sunny, with a high near 91.
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.94°N 121.94°W (Elev. 400 ft)
1:26 pm PDT Sep 3, 2026
7pm PDT Sep 3, 2026-6pm PDT Sep 10, 2026
 
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