Copperopolis, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Copperopolis, a community in Calaveras County, California.
Tonight
59°F
Clear
Clear, with a low around 59. North northwest wind 0 to 8 mph.
7-day forecast for Copperopolis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 59°F | Clear | 0 to 8 mph NNW | 0% |
| Saturday | 87°F | Sunny | 0 to 7 mph WNW | 0% |
| Saturday Night | 64°F | Partly Cloudy | 0 to 6 mph N | 0% |
| Sunday | 86°F | Partly Sunny | 1 to 8 mph WNW | 0% |
| Sunday Night | 63°F | Mostly Cloudy | 3 to 8 mph NNW | 0% |
| Monday | 87°F | Sunny | 3 to 8 mph NW | 0% |
| Monday Night | 62°F | Mostly Clear | 1 to 8 mph NNW | 0% |
| Tuesday | 88°F | Sunny | 1 to 7 mph NNW | 0% |
| Tuesday Night | 64°F | Clear | 1 to 7 mph N | 0% |
| Wednesday | 94°F | Sunny | 1 to 7 mph WNW | 0% |
| Wednesday Night | 68°F | Mostly Clear | 1 to 7 mph N | 0% |
| Thursday | 97°F | Sunny | 1 to 7 mph W | 0% |
| Thursday Night | 69°F | Mostly Clear | 2 to 7 mph N | 0% |
| Friday | 93°F | Sunny | 2 to 9 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Copperopolis (37.939, -120.625). Updated through the day.
Growing snapshot for Copperopolis
Last spring frost
Feb 20
First fall frost
Dec 11
Growing season
290 days
Hardiness zone
9b
More local growing data for Copperopolis: nearby ZIP 95228 weather · frost dates · planting calendar · California frost dates
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Climate data from the nearest NOAA station, New Melones Dam Hq, Ca (12.9 mi from Copperopolis). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.