Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West

Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >

Current conditions at

Vacaville Nut Tree Airport (KVCB)

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

Clear

86°F

30°C

Humidity 37%
Wind Speed SSE 5 MPH
Barometer 29.8 in (1009.14 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 04 Aug 10:53 AM PDT
Extended Forecast for

3 Miles ESE Vacaville CA

  • Today

    Today: Sunny, with a high near 95. Southwest wind 8 to 13 mph, with gusts as high as 22 mph.

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 60 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 94. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.

    High: 94 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Southwest wind 6 to 10 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 61.

    Low: 61 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

Detailed Forecast

Today
Sunny, with a high near 95. Southwest wind 8 to 13 mph, with gusts as high as 22 mph.
Tonight
Clear, with a low around 60. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 94. Southwest wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Clear, with a low around 60. Southwest wind 11 to 14 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 94. Southwest wind 6 to 10 mph.
Thursday Night
Clear, with a low around 61.
Friday
Sunny and hot, with a high near 96.
Friday Night
Clear, with a low around 63.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Clear, with a low around 63.
Sunday
Sunny, with a high near 94.
Sunday Night
Clear, with a low around 60.
Monday
Sunny, with a high near 87.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Vacaville CA
 38.35°N 121.9°W (Elev. 59 ft)
2:00 am PDT Aug 4, 2026
11am PDT Aug 4, 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