Green Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Valley, a community in Solano County, California.
This Afternoon
82°F
Sunny
Sunny. High near 82, with temperatures falling to around 80 in the afternoon. West wind around 13 mph, with gusts as high as 21 mph.
7-day forecast for Green Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Sunny | 13 mph W | 0% |
| Tonight | 58°F | Clear | 7 to 13 mph W | 0% |
| Saturday | 86°F | Sunny | 3 to 12 mph W | 0% |
| Saturday Night | 58°F | Partly Cloudy | 12 mph WSW | 0% |
| Sunday | 78°F | Partly Sunny | 6 to 10 mph WSW | 0% |
| Sunday Night | 57°F | Partly Cloudy | 13 mph WSW | 0% |
| Monday | 79°F | Sunny | 8 to 13 mph WSW | 0% |
| Monday Night | 57°F | Mostly Clear | 9 to 15 mph WSW | 0% |
| Tuesday | 83°F | Sunny | 5 to 10 mph WSW | 0% |
| Tuesday Night | 59°F | Mostly Clear | 0 to 10 mph W | 0% |
| Wednesday | 92°F | Sunny | 0 to 7 mph WSW | 0% |
| Wednesday Night | 64°F | Mostly Clear | 1 to 7 mph WSW | 0% |
| Thursday | 92°F | Sunny | 1 to 9 mph WSW | 0% |
| Thursday Night | 63°F | Mostly Clear | 9 mph WSW | 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 Sep 19, 2026.