Vallejo, CA Weather & Growing Conditions
Today
80°F
Sunny
Sunny. High near 80, with temperatures falling to around 78 in the afternoon. Southwest wind 7 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Sunny | 7 to 10 mph SW | 0% |
| Tonight | 58°F | Patchy Smoke | 9 mph SW | 0% |
| Wednesday | 80°F | Mostly Sunny | 7 to 10 mph SW | 0% |
| Wednesday Night | 57°F | Mostly Clear | 6 to 10 mph WSW | 0% |
| Thursday | 82°F | Sunny | 6 to 10 mph WSW | 0% |
| Thursday Night | 58°F | Mostly Clear | 6 to 10 mph WSW | 0% |
| Friday | 84°F | Sunny | 5 to 10 mph WSW | 0% |
| Friday Night | 59°F | Mostly Clear | 5 to 10 mph SW | 0% |
| Saturday | 85°F | Sunny | 5 to 9 mph SW | 0% |
| Saturday Night | 60°F | Mostly Clear | 6 to 9 mph SW | 0% |
| Sunday | 82°F | Sunny | 6 to 10 mph SW | 0% |
| Sunday Night | 58°F | Mostly Clear | 10 mph SW | 0% |
| Monday | 76°F | Sunny | 8 to 12 mph SW | 0% |
| Monday Night | 57°F | Mostly Clear | 7 to 12 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 (4.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.