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

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

77°F

25°C

Humidity 24%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Heat Index77°F (25°C)
Last update 03 Aug 07:00 AM PDT
Extended Forecast for

22 Miles ESE Mount Hamilton CA

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

    Today: Sunny and hot, with a high near 101. Southwest wind 5 to 7 mph becoming east in the morning.

    High: 101 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 68. West southwest wind 6 to 8 mph.

    Low: 68 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 100. West southwest wind around 7 mph becoming east southeast in the morning.

    High: 100 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 68. West wind 5 to 7 mph.

    Low: 68 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. West wind around 7 mph becoming east in the morning.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 100.

    High: 100 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 71.

    Low: 71 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 101. Southwest wind 5 to 7 mph becoming east in the morning.
Tonight
Clear, with a low around 68. West southwest wind 6 to 8 mph.
Tuesday
Sunny and hot, with a high near 100. West southwest wind around 7 mph becoming east southeast in the morning.
Tuesday Night
Clear, with a low around 68. West wind 5 to 7 mph.
Wednesday
Sunny and hot, with a high near 98. West wind around 7 mph becoming east in the morning.
Wednesday Night
Clear, with a low around 68.
Thursday
Sunny and hot, with a high near 100.
Thursday Night
Clear, with a low around 71.
Friday
Sunny and hot, with a high near 102.
Friday Night
Clear, with a low around 73.
Saturday
Sunny and hot, with a high near 102.
Saturday Night
Clear, with a low around 71.
Sunday
Sunny and hot, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
22 Miles ESE Mount Hamilton CA
 37.28°N 121.25°W (Elev. 600 ft)
2:00 am PDT Aug 3, 2026
8am PDT Aug 3, 2026-6pm PDT Aug 9, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database