Clearlake Oaks, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clearlake Oaks, a community in Lake County, California.
Tonight
58°F
Mostly Cloudy
Mostly cloudy, with a low around 58. West wind 0 to 6 mph.
7-day forecast for Clearlake Oaks
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 58°F | Mostly Cloudy | 0 to 6 mph W | 0% |
| Sunday | 88°F | Mostly Cloudy | 0 to 6 mph SE | 0% |
| Sunday Night | 58°F | Mostly Cloudy | 0 to 5 mph WSW | 0% |
| Monday | 91°F | Sunny | 1 to 8 mph NW | 0% |
| Monday Night | 56°F | Mostly Clear | 0 to 8 mph W | 0% |
| Tuesday | 91°F | Sunny | 0 to 8 mph NNW | 0% |
| Tuesday Night | 57°F | Mostly Clear | 0 to 8 mph WNW | 0% |
| Wednesday | 92°F | Sunny | 0 to 5 mph NE | 0% |
| Wednesday Night | 59°F | Mostly Clear | 0 to 5 mph WNW | 0% |
| Thursday | 92°F | Sunny | 0 to 7 mph E | 0% |
| Thursday Night | 58°F | Partly Cloudy | 2 to 7 mph W | 0% |
| Friday | 88°F | Mostly Sunny | 2 to 8 mph W | 1% |
| Friday Night | 55°F | Partly Cloudy | 1 to 8 mph W | 1% |
| Saturday | 83°F | Sunny | 1 to 7 mph WSW | 2% |
Forecast source: National Weather Service (api.weather.gov) for Clearlake Oaks (39.021, -122.657). Updated through the day.
Growing snapshot for Clearlake Oaks
Last spring frost
Apr 10
First fall frost
Nov 6
Growing season
209 days
Hardiness zone
9a
More local growing data for Clearlake Oaks: nearby ZIP 95422 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Clearlake
Clearlake Riviera
Cobb
Hidden Valley Lake
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 (5.9 mi from Clearlake Oaks). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.