National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Current conditions at

Vacaville Nut Tree Airport (KVCB)

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

Clear

97°F

36°C

Humidity 26%
Wind Speed S 9 MPH
Barometer 29.79 in (1008.81 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 29 Jul 04:00 PM PDT
Extended Forecast for

2 Miles WSW Vacaville CA

  • Tonight

    Tonight: Clear, with a low around 64. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.

    Low: 64 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 94. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.

    High: 94 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 63. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.

    Low: 63 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 98. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 65. Southwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.

    Low: 65 °F

    Clear

  • Saturday

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

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Clear, with a low around 68.

    Low: 68 °F

    Clear

  • Sunday

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

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 67.

    Low: 67 °F

    Clear

Detailed Forecast

Tonight
Clear, with a low around 64. Southwest wind 5 to 10 mph, with gusts as high as 18 mph.
Thursday
Sunny, with a high near 94. Light southwest wind increasing to 6 to 11 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Clear, with a low around 63. Southwest wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 21 mph.
Friday
Sunny and hot, with a high near 98. Calm wind becoming southwest around 6 mph in the afternoon.
Friday Night
Clear, with a low around 65. Southwest wind 5 to 10 mph becoming light west southwest after midnight. Winds could gust as high as 18 mph.
Saturday
Sunny and hot, with a high near 100.
Saturday Night
Clear, with a low around 68.
Sunday
Sunny and hot, with a high near 100.
Sunday Night
Clear, with a low around 67.
Monday
Sunny and hot, with a high near 100.
Monday Night
Clear, with a low around 66.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Clear, with a low around 65.
Wednesday
Sunny, with a high near 94.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WSW Vacaville CA
 38.36°N 121.99°W (Elev. 194 ft)
Last Update:
2:00 pm PDT Jul 29, 2026
Forecast Valid:
4pm PDT Jul 29, 2026-6pm PDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation