Potter Valley, CA Weather & Growing Conditions
Overnight
40°F
Partly Cloudy
Partly cloudy, with a low around 40. North northeast wind 6 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 40°F | Partly Cloudy | 6 to 10 mph NNE | 1% |
| Wednesday | 54°F | Mostly Sunny | 3 to 10 mph NNW | 1% |
| Wednesday Night | 41°F | Partly Cloudy | 3 to 8 mph N | 0% |
| Thursday | 60°F | Sunny | 3 to 7 mph NW | 0% |
| Thursday Night | 46°F | Mostly Clear | 5 mph N | 0% |
| Friday | 65°F | Sunny | 0 to 3 mph NNW | 0% |
| Friday Night | 52°F | Mostly Clear | 0 to 3 mph NE | 0% |
| Saturday | 66°F | Sunny | 0 to 3 mph E | 0% |
| Saturday Night | 49°F | Partly Cloudy | 1 mph NNE | 0% |
| Sunday | 62°F | Mostly Sunny | 3 mph NW | 0% |
| Sunday Night | 48°F | Mostly Cloudy | 1 mph N | 2% |
| Monday | 58°F | Partly Sunny | 0 to 3 mph WNW | 6% |
| Monday Night | 47°F | Partly Cloudy | 2 mph N | 5% |
| Tuesday | 59°F | Slight Chance Light Rain | 2 mph N | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Potter Valley, CA
Last spring frost
Apr 8
First fall frost
Nov 6
Growing season
211 days
Hardiness zone
9a
Explore more for Potter Valley, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Potter Valley Powerhouse, Ca (3.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.