Copperopolis, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Copperopolis, a community in Calaveras County, California.
Overnight
74°F
Clear
Clear, with a low around 74. North wind around 1 mph.
7-day forecast for Copperopolis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 74°F | Clear | 1 mph N | 0% |
| Tuesday | 102°F | Sunny | 1 to 9 mph WNW | 0% |
| Tuesday Night | 72°F | Clear | 2 to 8 mph NW | 0% |
| Wednesday | 101°F | Sunny | 2 to 9 mph WNW | 0% |
| Wednesday Night | 71°F | Clear | 3 to 9 mph NNW | 0% |
| Thursday | 101°F | Sunny | 3 to 10 mph NW | 0% |
| Thursday Night | 72°F | Clear | 2 to 10 mph NNW | 0% |
| Friday | 101°F | Sunny | 2 to 10 mph NNW | 0% |
| Friday Night | 73°F | Clear | 1 to 10 mph NNW | 0% |
| Saturday | 102°F | Sunny | 1 to 10 mph NNW | 0% |
| Saturday Night | 74°F | Clear | 0 to 10 mph NNW | 0% |
| Sunday | 101°F | Sunny | 0 to 9 mph WNW | 0% |
| Sunday Night | 71°F | Mostly Clear | 1 to 9 mph NNW | 0% |
| Monday | 97°F | Sunny | 1 to 8 mph WNW | 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 Aug 4, 2026.