Vallejo, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vallejo, a city in Solano County, California.
This Afternoon
69°F
Sunny
Sunny, with a high near 69. West southwest wind 8 to 13 mph.
7-day forecast for Vallejo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 69°F | Sunny | 8 to 13 mph WSW | 0% |
| Tonight | 58°F | Mostly Clear | 6 to 12 mph SW | 0% |
| Saturday | 70°F | Mostly Sunny | 5 to 12 mph SW | 0% |
| Saturday Night | 58°F | Mostly Cloudy | 10 mph SW | 0% |
| Sunday | 65°F | Partly Sunny | 7 to 10 mph SW | 0% |
| Sunday Night | 58°F | Mostly Cloudy | 10 mph SW | 0% |
| Monday | 69°F | Mostly Sunny | 8 to 12 mph SW | 0% |
| Monday Night | 57°F | Partly Cloudy | 6 to 12 mph SW | 0% |
| Tuesday | 75°F | Mostly Sunny | 5 to 9 mph SW | 0% |
| Tuesday Night | 58°F | Mostly Clear | 0 to 9 mph SSW | 0% |
| Wednesday | 85°F | Sunny | 0 to 6 mph SW | 0% |
| Wednesday Night | 60°F | Mostly Clear | 0 to 6 mph SSW | 0% |
| Thursday | 85°F | Sunny | 0 to 8 mph SW | 0% |
| Thursday Night | 60°F | Partly Cloudy | 3 to 8 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Vallejo (38.107, -122.262). Updated through the day.
Growing snapshot for Vallejo
Last spring frost
Jan 17
First fall frost
Dec 27
Growing season
346 days
Hardiness zone
9b
More local growing data for Vallejo: nearby ZIP 94590 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Vallejo, Ca (3.4 mi from Vallejo). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.