Vacaville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vacaville, a city in Solano County, California.
Overnight
68°F
Clear
Clear, with a low around 68. Southwest wind around 6 mph.
7-day forecast for Vacaville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Clear | 6 mph SW | 0% |
| Tuesday | 97°F | Sunny | 5 to 12 mph SW | 0% |
| Tuesday Night | 64°F | Clear | 5 to 10 mph SW | 0% |
| Wednesday | 96°F | Sunny | 5 to 12 mph SW | 0% |
| Wednesday Night | 64°F | Clear | 5 to 12 mph SW | 0% |
| Thursday | 97°F | Sunny | 3 to 12 mph SW | 0% |
| Thursday Night | 65°F | Clear | 5 to 12 mph WSW | 0% |
| Friday | 99°F | Sunny | 3 to 10 mph WSW | 0% |
| Friday Night | 66°F | Clear | 5 to 10 mph WSW | 0% |
| Saturday | 101°F | Sunny | 2 to 10 mph SW | 0% |
| Saturday Night | 66°F | Clear | 5 to 10 mph SW | 0% |
| Sunday | 96°F | Sunny | 5 to 13 mph SW | 0% |
| Sunday Night | 63°F | Mostly Clear | 8 to 13 mph SW | 0% |
| Monday | 89°F | Sunny | 8 to 13 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Vacaville (38.359, -121.969). Updated through the day.
Growing snapshot for Vacaville
Last spring frost
Feb 18
First fall frost
Nov 28
Growing season
283 days
Hardiness zone
9b
More local growing data for Vacaville: nearby ZIP 95687 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Vacaville Nut Tree Ap, Ca (3.7 mi from Vacaville). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.