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 >

Hazardous Weather Conditions

Current conditions at

Vacaville Nut Tree Airport (KVCB)

Lat: 38.37755°NLon: 121.95853°WElev: 105.0ft.

Clear

104°F

40°C

Humidity 14%
Wind Speed SW 3 MPH
Barometer 29.7 in (1005.76 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 03 Aug 04:15 PM PDT
Extended Forecast for

4 Miles WSW Vacaville CA

Heat Advisory August 3, 04:37pm until August 3, 10:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory August 3, 04:37pm until August 3, 10:00pm

    NOW until 10:00pm Mon

    Heat Advisory

  • Tonight

    Low: 72 °F

    Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 97. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 97 °F

    Hot

  • Tuesday Night

    Tuesday Night: Clear, with a low around 63. West southwest wind 10 to 13 mph, with gusts as high as 22 mph.

    Low: 63 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Southwest wind 6 to 9 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 61. West southwest wind around 11 mph, with gusts as high as 21 mph.

    Low: 61 °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 64.

    Low: 64 °F

    Clear

  • Friday

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

    High: 100 °F

    Hot

Detailed Forecast

Tonight
Clear, with a low around 72. West wind around 10 mph, with gusts as high as 18 mph.
Tuesday
Sunny and hot, with a high near 97. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tuesday Night
Clear, with a low around 63. West southwest wind 10 to 13 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 95. Southwest wind 6 to 9 mph.
Wednesday Night
Clear, with a low around 61. West southwest wind around 11 mph, with gusts as high as 21 mph.
Thursday
Sunny and hot, with a high near 97.
Thursday Night
Clear, with a low around 64.
Friday
Sunny and hot, with a high near 100.
Friday Night
Clear, with a low around 66.
Saturday
Sunny and hot, with a high near 101.
Saturday Night
Clear, with a low around 69.
Sunday
Sunny, with a high near 94.
Sunday Night
Clear, with a low around 62.
Monday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Vacaville CA
 38.35°N 122.04°W (Elev. 656 ft)
2:00 pm PDT Aug 3, 2026
4pm PDT Aug 3, 2026-6pm PDT Aug 10, 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