Vacaville, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vacaville, a city in Solano County, California.
This Afternoon
59°F
Chance Light Rain
A chance of rain. Partly sunny. High near 59, with temperatures falling to around 57 in the afternoon. Northeast wind around 3 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Vacaville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Chance Light Rain | 3 mph NE | 46% |
| Tonight | 50°F | Chance Light Rain then Mostly Cloudy | 3 to 12 mph N | 45% |
| Wednesday | 69°F | Sunny | 2 to 10 mph NW | 0% |
| Wednesday Night | 50°F | Partly Cloudy | 2 mph WNW | 0% |
| Thursday | 72°F | Sunny | 0 to 7 mph NNW | 0% |
| Thursday Night | 51°F | Mostly Clear | 2 mph NW | 0% |
| Friday | 72°F | Sunny | 2 mph NNE | 0% |
| Friday Night | 50°F | Clear | 0 mph | 0% |
| Saturday | 73°F | Sunny | 0 to 5 mph NE | 0% |
| Saturday Night | 51°F | Mostly Clear | 0 mph | 0% |
| Sunday | 73°F | Mostly Sunny | 1 mph NNE | 0% |
| Sunday Night | 52°F | Partly Cloudy | 0 mph | 0% |
| Monday | 72°F | Partly Sunny | 1 mph W | 0% |
| Monday Night | 52°F | Partly Cloudy | 1 mph WNW | 2% |
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.