Spring Valley, CA Weather & Growing Conditions
Today
102°F
Sunny
Sunny, with a high near 102. East wind 1 to 12 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 102°F | Sunny | 1 to 12 mph E | 0% |
| Tonight | 70°F | Mostly Clear | 0 to 12 mph WNW | 0% |
| Wednesday | 100°F | Sunny | 0 to 9 mph SE | 0% |
| Wednesday Night | 68°F | Clear | 0 to 7 mph WSW | 0% |
| Thursday | 100°F | Sunny | 0 to 8 mph ESE | 0% |
| Thursday Night | 68°F | Mostly Clear | 0 to 8 mph W | 0% |
| Friday | 102°F | Sunny | 0 to 9 mph ENE | 0% |
| Friday Night | 70°F | Clear | 0 to 9 mph WNW | 0% |
| Saturday | 103°F | Sunny | 0 to 10 mph NNE | 0% |
| Saturday Night | 70°F | Clear | 2 to 10 mph WNW | 0% |
| Sunday | 99°F | Sunny | 2 to 10 mph N | 0% |
| Sunday Night | 65°F | Clear | 1 to 10 mph W | 0% |
| Monday | 95°F | Sunny | 1 to 9 mph E | 0% |
| Monday Night | 62°F | Mostly Clear | 0 to 9 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Spring Valley, CA
Last spring frost
Apr 10
First fall frost
Nov 6
Growing season
209 days
Hardiness zone
9a
Explore more for Spring Valley, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Clearlake 4 Se, Ca (10.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.