Green Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Valley, a community in Solano County, California.
Overnight
71°F
Clear
Clear. Low around 71, with temperatures rising to around 74 overnight. West wind around 13 mph.
7-day forecast for Green Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Clear | 13 mph W | 0% |
| Tuesday | 89°F | Sunny | 9 to 13 mph WSW | 0% |
| Tuesday Night | 60°F | Clear | 15 mph W | 0% |
| Wednesday | 88°F | Sunny | 9 to 13 mph WSW | 0% |
| Wednesday Night | 59°F | Clear | 15 mph WSW | 0% |
| Thursday | 89°F | Sunny | 8 to 14 mph WSW | 0% |
| Thursday Night | 60°F | Clear | 14 mph WSW | 0% |
| Friday | 91°F | Sunny | 6 to 13 mph WSW | 0% |
| Friday Night | 62°F | Clear | 9 to 14 mph WSW | 0% |
| Saturday | 93°F | Sunny | 6 to 13 mph WSW | 0% |
| Saturday Night | 63°F | Mostly Clear | 9 to 13 mph WSW | 0% |
| Sunday | 89°F | Sunny | 8 to 14 mph WSW | 0% |
| Sunday Night | 59°F | Mostly Clear | 15 mph SW | 0% |
| Monday | 82°F | Sunny | 10 to 14 mph SW | 0% |
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 Aug 4, 2026.