Clearlake Riviera, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Clearlake Riviera, a community in Lake County, California.
Tonight
61°F
Mostly Cloudy
Mostly cloudy, with a low around 61. Northwest wind 1 to 6 mph.
7-day forecast for Clearlake Riviera
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 61°F | Mostly Cloudy | 1 to 6 mph NW | 0% |
| Sunday | 85°F | Mostly Cloudy | 1 to 5 mph E | 0% |
| Sunday Night | 62°F | Mostly Cloudy | 3 mph WNW | 0% |
| Monday | 87°F | Sunny | 1 to 7 mph W | 0% |
| Monday Night | 60°F | Mostly Clear | 0 to 7 mph W | 0% |
| Tuesday | 87°F | Sunny | 0 to 7 mph SW | 0% |
| Tuesday Night | 60°F | Mostly Clear | 1 to 7 mph WNW | 0% |
| Wednesday | 89°F | Sunny | 3 mph NE | 0% |
| Wednesday Night | 64°F | Mostly Clear | 3 mph NW | 0% |
| Thursday | 90°F | Sunny | 1 to 6 mph ESE | 0% |
| Thursday Night | 63°F | Partly Cloudy | 2 to 6 mph W | 0% |
| Friday | 84°F | Mostly Sunny | 2 to 7 mph WNW | 1% |
| Friday Night | 59°F | Partly Cloudy | 1 to 7 mph W | 1% |
| Saturday | 80°F | Sunny | 1 to 5 mph W | 2% |
Forecast source: National Weather Service (api.weather.gov) for Clearlake Riviera (38.951, -122.722). Updated through the day.
Growing snapshot for Clearlake Riviera
Last spring frost
Apr 10
First fall frost
Nov 6
Growing season
209 days
Hardiness zone
9b
More local growing data for Clearlake Riviera: nearby ZIP 95451 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Clearlake
Clearlake Oaks
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 (12 mi from Clearlake Riviera). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.