Vacaville Weather Forecast
- 52
- 75
Mostly Sunny
- 58
- 73
Mostly Cloudy
- 53
- 67
Rain Showers Likely
- 57
- 66
Chance Rain Showers
- 56
- 70
Partly Sunny
- 56
- 75
Mostly Sunny
Today 23 Oct Southern Sacramento Valley
Partly cloudy in the morning then clearing. Highs 70 to 76. Light Winds.
Tonight 23 Oct Southern Sacramento Valley
Mostly clear. Lows around 51. Light Winds.
Vacaville Temperature Statistics
October Temperature
Vacaville Nut Tree Airport (1.9 miles)
Lowest 16 October, 2025
44.1 °FAverage October
63.2 °FHighest 7 October, 2025
91 °F
Climate (2020–Present)
Vacaville Nut Tree Airport (1.9 miles)
Average Low 2020–2025
49 °FAverage 2020–2025
62.8 °FAverage High 2020–2025
77 °F