Hidden Valley Lake, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hidden Valley Lake, a community in Lake County, California.
Overnight
60°F
Clear
Clear, with a low around 60. Wind around 0 mph.
7-day forecast for Hidden Valley Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Clear | 0 mph | 0% |
| Tuesday | 101°F | Sunny | 0 to 12 mph S | 0% |
| Tuesday Night | 59°F | Mostly Clear | 0 to 12 mph SSW | 0% |
| Wednesday | 99°F | Sunny | 0 to 10 mph S | 0% |
| Wednesday Night | 57°F | Clear | 0 to 9 mph SW | 0% |
| Thursday | 99°F | Sunny | 0 to 8 mph S | 0% |
| Thursday Night | 60°F | Clear | 0 to 8 mph SW | 0% |
| Friday | 101°F | Sunny | 0 to 8 mph S | 0% |
| Friday Night | 63°F | Clear | 0 to 8 mph W | 0% |
| Saturday | 103°F | Sunny | 0 to 9 mph N | 0% |
| Saturday Night | 63°F | Mostly Clear | 1 to 9 mph W | 0% |
| Sunday | 100°F | Sunny | 1 to 10 mph WSW | 0% |
| Sunday Night | 58°F | Clear | 0 to 10 mph W | 0% |
| Monday | 94°F | Sunny | 0 to 9 mph SE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Hidden Valley Lake (38.801, -122.551). Updated through the day.
Growing snapshot for Hidden Valley Lake
Last spring frost
Apr 10
First fall frost
Nov 6
Growing season
209 days
Hardiness zone
9a
More local growing data for Hidden Valley Lake: nearby ZIP 95467 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Clearlake
Clearlake Oaks
Clearlake Riviera
Cobb
Kelseyville
Lakeport
Lower Lake
Lucerne
Middletown
Nice
North Lakeport
Soda Bay
Spring Valley
Upper Lake
Climate data from the nearest NOAA station, Clearlake 4 Se, Ca (7.7 mi from Hidden Valley Lake). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.