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Trinity Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
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| Sunny | Partly Cloudy | Chance of T-Storm | Mostly Clear | Sunny | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C |
| POP: 20% | POP: 50% | POP: 30% | POP: 40% | POP: 30% | POP: 60% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 525 AM MDT Tue Sep 01 2026 
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Issued: 518 AM MDT Tue Sep 1 2026
Key Messages
- Drier air begins to move in today, limiting chances for showers and thunderstorms to the higher terrain this afternoon.
- Deep surface moisture will keep chances for heavy rain in the forecast, along with the potential for flash flooding and debris flows over recent burn scars and other vulnerable areas.
- Temperatures will warm through the end of the week, reaching near- normal by Friday.
Discussion
... Issued at 1027 PM MDT Mon Aug 31 2026
Troughing along the West Coast and ridging across...