Green Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green Valley, a community in Los Angeles County, California.
Today
91°F
Sunny
Sunny, with a high near 91. Southwest wind 5 to 15 mph, with gusts as high as 25 mph.
7-day forecast for Green Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 91°F | Sunny | 5 to 15 mph SW | 0% |
| Tonight | 68°F | Clear | 5 to 15 mph SW | 0% |
| Wednesday | 92°F | Sunny | 5 to 15 mph SW | 0% |
| Wednesday Night | 70°F | Clear | 10 to 15 mph WSW | 0% |
| Thursday | 93°F | Sunny | 10 to 15 mph SW | 0% |
| Thursday Night | 65°F | Clear | 5 to 15 mph SW | 0% |
| Friday | 93°F | Sunny | 5 to 15 mph SW | 0% |
| Friday Night | 66°F | Clear | 10 to 15 mph SW | 0% |
| Saturday | 95°F | Sunny | 10 to 15 mph WSW | 0% |
| Saturday Night | 67°F | Clear | 10 to 15 mph SW | 0% |
| Sunday | 92°F | Sunny | 10 to 20 mph SW | 0% |
| Sunday Night | 64°F | Mostly Clear | 10 to 20 mph SW | 0% |
| Monday | 87°F | Sunny | 10 to 20 mph SW | 1% |
| Monday Night | 61°F | Mostly Clear | 10 to 20 mph SW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Green Valley (34.617, -118.405). Updated through the day.
Growing snapshot for Green Valley
Last spring frost
Apr 6
First fall frost
Nov 29
Growing season
236 days
Hardiness zone
9b
More local growing data for Green Valley: nearby ZIP 91390 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Fairmont, Ca (9.6 mi from Green Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.