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

98°F

37°C

Humidity 18%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Heat Index94°F (34°C)
Last update 03 Aug 02:28 PM PDT
Extended Forecast for

4 Miles SSE 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: 90 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 71. West southwest wind around 8 mph.

    Low: 71 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 67. Southwest wind around 9 mph.

    Low: 67 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83. West wind 6 to 9 mph.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 65.

    Low: 65 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 69.

    Low: 69 °F

    Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 90. West southwest wind around 8 mph.
Tonight
Clear, with a low around 71. West southwest wind around 8 mph.
Tuesday
Sunny, with a high near 88. South southwest wind 6 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Clear, with a low around 67. Southwest wind around 9 mph.
Wednesday
Sunny, with a high near 83. West wind 6 to 9 mph.
Wednesday Night
Clear, with a low around 65.
Thursday
Sunny, with a high near 84.
Thursday Night
Clear, with a low around 69.
Friday
Sunny, with a high near 87.
Friday Night
Clear, with a low around 72.
Saturday
Sunny, with a high near 88.
Saturday Night
Clear, with a low around 73.
Sunday
Sunny, with a high near 80.
Sunday Night
Mostly clear, with a low around 66.
Monday
Sunny, with a high near 75.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Clayton CA
 37.87°N 121.92°W (Elev. 2818 ft)
1:26 pm PDT Aug 3, 2026
3pm PDT Aug 3, 2026-6pm PDT Aug 10, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database