Potter Valley, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Potter Valley, a community in Mendocino County, California.
Overnight
59°F
Mostly Clear
Mostly clear, with a low around 59. West southwest wind around 2 mph.
7-day forecast for Potter Valley
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 59°F | Mostly Clear | 2 mph WSW | 0% |
| Tuesday | 105°F | Sunny | 1 to 10 mph WSW | 0% |
| Tuesday Night | 60°F | Mostly Clear | 0 to 8 mph WNW | 0% |
| Wednesday | 103°F | Sunny | 0 to 9 mph SW | 0% |
| Wednesday Night | 58°F | Clear | 0 to 7 mph W | 0% |
| Thursday | 101°F | Sunny | 0 to 6 mph WSW | 0% |
| Thursday Night | 58°F | Mostly Clear | 0 to 6 mph WNW | 0% |
| Friday | 103°F | Sunny | 0 to 6 mph W | 0% |
| Friday Night | 60°F | Mostly Clear | 0 to 6 mph WNW | 0% |
| Saturday | 104°F | Sunny | 0 to 7 mph WNW | 0% |
| Saturday Night | 58°F | Mostly Clear | 1 to 7 mph NW | 0% |
| Sunday | 98°F | Sunny | 1 to 7 mph W | 0% |
| Sunday Night | 54°F | Mostly Clear | 0 to 7 mph NW | 0% |
| Monday | 95°F | Sunny | 0 to 6 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Potter Valley (39.317, -123.110). Updated through the day.
Growing snapshot for Potter Valley
Last spring frost
Apr 8
First fall frost
Nov 6
Growing season
211 days
Hardiness zone
9a
More local growing data for Potter Valley: nearby ZIP 95469 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, Potter Valley Powerhouse, Ca (3.8 mi from Potter Valley). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.