Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Vacaville Nut Tree Airport (KVCB)

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

Clear

82°F

28°C

Humidity 39%
Wind Speed SSW 3 MPH
Barometer 29.89 in (1012.19 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 18 Aug 09:00 PM PDT
Extended Forecast for

4 Miles WNW Vacaville CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 64. West wind 5 to 7 mph becoming calm  after midnight.

    Low: 64 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny and hot, with a high near 96. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 96 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 65. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.

    Low: 65 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 64. West wind 5 to 7 mph becoming calm after midnight.
Wednesday
Sunny and hot, with a high near 96. Calm wind becoming west southwest 5 to 8 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 63. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 93. Calm wind becoming southwest around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 65. West southwest wind 5 to 9 mph, with gusts as high as 18 mph.
Friday
Mostly sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 61.
Saturday
Sunny, with a high near 91.
Saturday Night
Clear, with a low around 62.
Sunday
Sunny, with a high near 92.
Sunday Night
Mostly clear, with a low around 61.
Monday
Sunny, with a high near 88.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Sunny, with a high near 88.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Vacaville CA
 38.4°N 122.02°W (Elev. 568 ft)
2:00 pm PDT Aug 18, 2026
9pm PDT Aug 18, 2026-6pm PDT Aug 25, 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