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.
Today
93°F
Sunny
Sunny, with a high near 93. Northwest wind 3 to 8 mph.
7-day forecast for Hidden Valley Lake
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 93°F | Sunny | 3 to 8 mph NW | 0% |
| Tonight | 54°F | Partly Cloudy | 0 to 8 mph WSW | 0% |
| Sunday | 88°F | Mostly Cloudy | 0 to 7 mph SSE | 0% |
| Sunday Night | 53°F | Mostly Cloudy | 0 to 7 mph SSW | 0% |
| Monday | 90°F | Sunny | 0 to 9 mph S | 0% |
| Monday Night | 52°F | Mostly Clear | 0 to 9 mph SW | 0% |
| Tuesday | 91°F | Sunny | 0 to 7 mph SSW | 0% |
| Tuesday Night | 53°F | Clear | 0 to 7 mph WNW | 0% |
| Wednesday | 94°F | Sunny | 0 to 7 mph ENE | 0% |
| Wednesday Night | 56°F | Mostly Clear | 0 to 7 mph WNW | 0% |
| Thursday | 94°F | Sunny | 0 to 8 mph SSE | 0% |
| Thursday Night | 55°F | Mostly Clear | 0 to 8 mph W | 1% |
| Friday | 89°F | Mostly Sunny | 0 to 9 mph WSW | 1% |
| Friday Night | 51°F | Partly Cloudy | 0 to 9 mph W | 1% |
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 Sep 19, 2026.