Showers and Storms continue across the East; Heat, Critical Fire Weather, Drought, and Poor Air Quality continues in the West

A series of fronts will focus locally heavy showers and storms across portions of the central and eastern U.S. through the end of the workweek. Dangerous to extreme heat continues across the Southwest U.S., eventually spreading eastward over the weekend into early next week. Elevated fire weather conditions continue across the Great Basin, with degraded air quality lingering across the Northwest. Read More >

Current conditions at

Vacaville Nut Tree Airport (KVCB)

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

Clear

84°F

29°C

Humidity 35%
Wind Speed SW 5 MPH
Barometer 29.73 in (1006.77 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 04 Aug 09:00 PM PDT
Extended Forecast for

Vacaville CA

  • Tonight

    Tonight: Clear, with a low around 68. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 68 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 99. Southwest wind 3 to 8 mph.

    High: 99 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 64. Southwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 64 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 66.

    Low: 66 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 68. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 95. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 63. West southwest wind 6 to 10 mph, with gusts as high as 21 mph.
Thursday
Sunny and hot, with a high near 99. Southwest wind 3 to 8 mph.
Thursday Night
Clear, with a low around 64. Southwest wind 5 to 11 mph, with gusts as high as 21 mph.
Friday
Sunny and hot, with a high near 99.
Friday Night
Clear, with a low around 66.
Saturday
Sunny and hot, with a high near 101.
Saturday Night
Clear, with a low around 66.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Clear, with a low around 66.
Monday
Sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Vacaville CA
 38.36°N 121.99°W (Elev. 194 ft)
2:01 pm PDT Aug 4, 2026
9pm PDT Aug 4, 2026-6pm PDT Aug 11, 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