Vacaville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vacaville, a city in Solano County, California.
This Afternoon
70°F
Sunny
Sunny. High near 70, with temperatures falling to around 67 in the afternoon. North wind 2 to 7 mph.
7-day forecast for Vacaville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Sunny | 2 to 7 mph N | 1% |
| Tonight | 50°F | Partly Cloudy | 1 mph NW | 1% |
| Thursday | 73°F | Sunny | 0 to 8 mph NNW | 0% |
| Thursday Night | 49°F | Mostly Clear | 2 mph NW | 0% |
| Friday | 72°F | Sunny | 0 to 6 mph NNE | 0% |
| Friday Night | 49°F | Clear | 1 mph NE | 0% |
| Saturday | 72°F | Sunny | 0 to 5 mph NNE | 0% |
| Saturday Night | 50°F | Mostly Clear | 0 mph | 0% |
| Sunday | 73°F | Sunny | 2 mph NNE | 0% |
| Sunday Night | 50°F | Partly Cloudy | 0 mph | 0% |
| Monday | 72°F | Mostly Sunny | 1 mph NW | 0% |
| Monday Night | 51°F | Partly Cloudy | 1 mph WNW | 1% |
| Tuesday | 72°F | Sunny | 1 mph NNE | 1% |
| Tuesday Night | 51°F | Partly Cloudy | 1 mph W | 7% |
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 Nov 4, 2026.