Vallejo, CA Weather & Growing Conditions
Overnight
58°F
Mostly Clear
Mostly clear, with a low around 58. Southwest wind around 9 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 58°F | Mostly Clear | 9 mph SW | 0% |
| Tuesday | 69°F | Sunny | 8 to 14 mph SW | 0% |
| Tuesday Night | 57°F | Patchy Smoke | 9 to 13 mph SW | 0% |
| Wednesday | 68°F | Mostly Sunny | 8 to 13 mph SW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 9 to 13 mph SW | 0% |
| Thursday | 69°F | Mostly Sunny | 7 to 13 mph WSW | 0% |
| Thursday Night | 58°F | Mostly Clear | 8 to 13 mph SW | 0% |
| Friday | 72°F | Sunny | 6 to 12 mph SW | 0% |
| Friday Night | 59°F | Mostly Clear | 8 to 12 mph SW | 0% |
| Saturday | 74°F | Sunny | 6 to 12 mph SW | 0% |
| Saturday Night | 60°F | Mostly Clear | 12 mph SW | 0% |
| Sunday | 72°F | Sunny | 9 to 14 mph SW | 0% |
| Sunday Night | 58°F | Mostly Clear | 15 mph SW | 0% |
| Monday | 65°F | Sunny | 12 to 15 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Vallejo, CA
Last spring frost
Jan 17
First fall frost
Dec 27
Growing season
346 days
Hardiness zone
9b
Explore more for Vallejo, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Vallejo, Ca (5.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.