Ruby River Reservoir, MT Weather Forecast
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Ruby River Reservoir Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Rain and Snow |
| Hi: 80°FHi: 27°C | Lo: 45°FLo: 7°C | Hi: 77°FHi: 25°C | Lo: 41°FLo: 5°C | Hi: 76°FHi: 24°C | Lo: 41°FLo: 5°C | Hi: 74°FHi: 23°C | Hi: 75°FHi: 24°C Lo: 41°FLo: 5°C | Hi: 75°FHi: 24°C Lo: 41°FLo: 5°C | Hi: 67°FHi: 19°C Lo: 45°FLo: 7°C | Hi: 67°FHi: 19°C Lo: 45°FLo: 7°C | Lo: 31°FLo: -1°C |
| POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 452 AM MDT Mon Oct 05 2026 

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Issued: 1139 AM MDT Mon Oct 5 2026
Key Messages
- Warm and dry conditions continue through Friday, with today being the hottest day.
- Warm, breezy, and dry conditions today will bring elevated fire weather.
- Confidence is increasing for cooler and wetter weather Saturday through the beginning of next week.
Discussion
... /Issued 533 AM MDT Mon Oct 5 2026/- Meteorological Overview:
Upper-level ridging continues to be the dominating pattern through Friday. This pattern will continue to bring warm and dry weather through the work week. Today...
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