Vallejo, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Vallejo, a city in Solano County, California.
Today
69°F
Sunny
Sunny, with a high near 69. Southwest wind 8 to 13 mph, with gusts as high as 18 mph.
7-day forecast for Vallejo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 69°F | Sunny | 8 to 13 mph SW | 0% |
| Tonight | 58°F | Patchy Smoke | 13 mph SW | 0% |
| Wednesday | 69°F | Mostly Sunny | 8 to 12 mph SW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 12 mph SW | 0% |
| Thursday | 70°F | Mostly Sunny | 8 to 12 mph WSW | 0% |
| Thursday Night | 58°F | Mostly Clear | 8 to 12 mph WSW | 0% |
| Friday | 79°F | Sunny | 6 to 10 mph WSW | 0% |
| Friday Night | 59°F | Mostly Clear | 6 to 10 mph SW | 0% |
| Saturday | 81°F | Sunny | 5 to 10 mph SW | 0% |
| Saturday Night | 60°F | Mostly Clear | 7 to 10 mph SW | 0% |
| Sunday | 79°F | Sunny | 7 to 12 mph SW | 0% |
| Sunday Night | 58°F | Mostly Clear | 12 mph SW | 0% |
| Monday | 72°F | Sunny | 9 to 13 mph SW | 0% |
| Monday Night | 57°F | Mostly Clear | 9 to 13 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 Aug 4, 2026.