
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 Index | 85°F (29°C) |
| Last update | 04 Aug 10:53 AM PDT |
Extended Forecast for
3 Miles ESE Vacaville CA
Today

High: 95 °F
Sunny
Tonight

Low: 60 °F
Clear
Wednesday

High: 94 °F
Sunny
Wednesday Night

Low: 60 °F
Clear
Thursday

High: 94 °F
Sunny
Thursday Night

Low: 61 °F
Clear
Friday

High: 96 °F
Hot
Friday Night

Low: 63 °F
Clear
Saturday

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.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles ESE Vacaville CA
38.35°N 121.9°W (Elev. 59 ft)
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


