Vacaville, CA Weather & Growing Conditions
Tonight
57°F
Clear
Clear, with a low around 57. Southwest wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 57°F | Clear | 9 mph SW | 0% |
| Saturday | 88°F | Sunny | 3 to 10 mph SW | 0% |
| Saturday Night | 58°F | Partly Cloudy | 10 mph SW | 0% |
| Sunday | 81°F | Partly Sunny | 7 to 10 mph SW | 0% |
| Sunday Night | 57°F | Mostly Cloudy | 12 mph SW | 0% |
| Monday | 83°F | Sunny | 9 to 13 mph WSW | 0% |
| Monday Night | 57°F | Mostly Clear | 8 to 13 mph SW | 0% |
| Tuesday | 86°F | Sunny | 5 to 9 mph WSW | 0% |
| Tuesday Night | 58°F | Clear | 1 to 9 mph WSW | 0% |
| Wednesday | 94°F | Sunny | 3 mph W | 0% |
| Wednesday Night | 62°F | Mostly Clear | 3 mph WSW | 0% |
| Thursday | 94°F | Sunny | 1 to 8 mph W | 0% |
| Thursday Night | 62°F | Mostly Clear | 8 mph SW | 0% |
| Friday | 88°F | Sunny | 7 to 12 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Vacaville, CA
Last spring frost
Feb 18
First fall frost
Nov 28
Growing season
283 days
Hardiness zone
9b
Explore more for Vacaville, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Vacaville Nut Tree Ap, Ca (3.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.