Green Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Valley, a community in Solano County, California.
Tonight
51°F
Chance Light Rain then Partly Cloudy
A chance of rain before 10pm. Partly cloudy, with a low around 51. North northeast wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Green Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Chance Light Rain then Partly Cloudy | 10 to 14 mph NNE | 25% |
| Wednesday | 66°F | Sunny | 6 to 9 mph NW | 1% |
| Wednesday Night | 50°F | Partly Cloudy | 3 to 7 mph WNW | 0% |
| Thursday | 70°F | Sunny | 2 to 6 mph NW | 0% |
| Thursday Night | 52°F | Mostly Clear | 3 mph WNW | 0% |
| Friday | 71°F | Sunny | 0 to 3 mph NNW | 0% |
| Friday Night | 53°F | Clear | 2 mph N | 0% |
| Saturday | 72°F | Sunny | 1 to 6 mph E | 0% |
| Saturday Night | 53°F | Mostly Clear | 0 to 3 mph N | 0% |
| Sunday | 72°F | Mostly Sunny | 3 mph WNW | 0% |
| Sunday Night | 55°F | Partly Cloudy | 2 mph WNW | 0% |
| Monday | 70°F | Partly Sunny | 1 to 5 mph W | 1% |
| Monday Night | 53°F | Partly Cloudy | 1 to 5 mph W | 2% |
| Tuesday | 70°F | Mostly Sunny | 0 to 3 mph WNW | 8% |
Forecast source: National Weather Service (api.weather.gov) for Green Valley (38.264, -122.162). Updated through the day.
Growing snapshot for Green Valley
Last spring frost
Jan 15
First fall frost
Dec 14
Growing season
336 days
Hardiness zone
9b
More local growing data for Green Valley: nearby ZIP 94534 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Fairfield, Ca (3.5 mi from Green Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.