Extreme Heat in the Southwest; Severe Weather in the Northern Plains; Heavy Rain in the East

Extreme heat continues across the Southwest as temperatures may top 120 degrees. The heat may expand across the West and south-central U.S. into the middle of the month. Severe thunderstorms capable of severe wind gusts and large hail will be the primary hazards today across the northern Plains into the upper Midwest. Rainfall could be locally heavy across the Eastern U.S. today. Read More >

Current conditions at

BLACK DIAMOND (PIBC1)

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

NA

92°F

33°C

Humidity 22%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index89°F (32°C)
Last update 03 Aug 12:28 PM PDT
Extended Forecast for

Clayton CA

Heat Advisory until August 3, 10:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until August 3, 10:00pm

    NOW until 10:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 103 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 61. Southwest wind 6 to 8 mph.

    Low: 61 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 59. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. West wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 58.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 97.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 103. West wind 6 to 8 mph.
Tonight
Clear, with a low around 61. Southwest wind 6 to 8 mph.
Tuesday
Sunny and hot, with a high near 101. West southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Clear, with a low around 59. West southwest wind 7 to 10 mph, with gusts as high as 18 mph.
Wednesday
Sunny, with a high near 95. West wind 7 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Clear, with a low around 58.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Clear, with a low around 60.
Friday
Sunny and hot, with a high near 101.
Friday Night
Clear, with a low around 62.
Saturday
Sunny and hot, with a high near 102.
Saturday Night
Clear, with a low around 64.
Sunday
Sunny, with a high near 93.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Clayton CA
 37.94°N 121.94°W (Elev. 400 ft)
1:26 pm PDT Aug 3, 2026
1pm PDT Aug 3, 2026-6pm PDT Aug 9, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database