Clearlake Oaks, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clearlake Oaks, a community in Lake County, California.
Overnight
43°F
Patchy Fog
Patchy fog. Mostly cloudy, with a low around 43. Northeast wind around 1 mph.
7-day forecast for Clearlake Oaks
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 43°F | Patchy Fog | 1 mph NE | 0% |
| Wednesday | 65°F | Patchy Fog then Partly Sunny | 1 to 9 mph WNW | 2% |
| Wednesday Night | 40°F | Mostly Cloudy | 3 to 9 mph WNW | 2% |
| Thursday | 71°F | Sunny | 3 mph WNW | 0% |
| Thursday Night | 44°F | Mostly Clear | 1 mph NNW | 0% |
| Friday | 74°F | Sunny | 2 mph WNW | 0% |
| Friday Night | 46°F | Mostly Clear | 0 mph | 0% |
| Saturday | 74°F | Sunny | 0 to 3 mph SE | 0% |
| Saturday Night | 45°F | Mostly Clear | 2 mph NW | 0% |
| Sunday | 73°F | Mostly Sunny | 3 mph WNW | 0% |
| Sunday Night | 45°F | Partly Cloudy | 2 mph NW | 0% |
| Monday | 69°F | Mostly Sunny | 2 mph W | 2% |
| Monday Night | 43°F | Partly Cloudy | 2 mph NW | 2% |
| Tuesday | 70°F | Sunny | 0 to 3 mph WNW | 13% |
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 Nov 4, 2026.