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Copperopolis Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY |
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| Mostly Cloudy | Chance of Rain | Partly Cloudy | Chance of Rain | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Clear | Mostly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear |
| Hi: 68°FHi: 20°C | Lo: 55°FLo: 13°C | Hi: 69°FHi: 21°C | Lo: 53°FLo: 12°C | Hi: 64°FHi: 18°C | Lo: 50°FLo: 10°C | Hi: 64°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C | Lo: 48°FLo: 9°C | Hi: 68°FHi: 20°C Lo: 48°FLo: 9°C | Hi: 68°FHi: 20°C Lo: 48°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1242 PM PDT Thu Oct 29 2026 
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Issued: 245 PM PDT Thu Oct 29 2026
Key Messages
- Mostly dry weather conditions through today
- Chances of light rain and mountain snow returns late this evening through Friday for the Sierra
- A storm system will bring cooler temperatures, rain and mountain snow above 6000-7000 feet Saturday into Sunday
- Winter Weather Advisory in effect from 8 AM Saturday to 7 AM Sunday for elevations above 7000 feet in the Sierra Nevada
- High pressure will promote a drying and modest warming for Sunday and Monday
- Breezy north to east winds Sunday into ...