Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest and California this week with limited nighttime relief. Heavy rainfall will lead to localized areas of flash flooding in parts of the Ohio Valley/Central Appalachians. Dry and breezy conditions will enhance fire weather concerns across the northern Rockies and High Plains. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

85°F

29°C

Humidity 20%
Wind Speed S 8 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Heat Index82°F (28°C)
Last update 09 Sep 09:28 PM PDT
Extended Forecast for

2 Miles WNW Clayton CA

Heat Advisory September 9, 09:50pm until September 10, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 9, 09:50pm until September 10, 10:00pm

    NOW until 10:00pm Thu

    Heat Advisory

  • Tonight

    Low: 80 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100. West southwest wind 6 to 11 mph, with gusts as high as 22 mph.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. South southwest wind 9 to 11 mph, with gusts as high as 22 mph.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 88. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.

    High: 88 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 58. Southwest wind around 11 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 80. South southwest wind 3 to 5 mph.
Thursday
Sunny and hot, with a high near 100. West southwest wind 6 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Mostly clear, with a low around 61. South southwest wind 9 to 11 mph, with gusts as high as 22 mph.
Friday
Sunny, with a high near 88. Southwest wind 11 to 13 mph, with gusts as high as 23 mph.
Friday Night
Clear, with a low around 58. Southwest wind around 11 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 85.
Sunday Night
Clear, with a low around 56.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 56.
Tuesday
Sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 79.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Clayton CA
 37.96°N 121.97°W (Elev. 249 ft)
9:07 pm PDT Sep 9, 2026
9pm PDT Sep 9, 2026-6pm PDT Sep 16, 2026
 
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