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Chowder Reservoir Weather Forecast
| TODAY | TONIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
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| Rain | Rain and Snow | Rain and Snow | Mostly Cloudy | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear |
| Hi: 45°FHi: 7°C | Lo: 29°FLo: -2°C | Hi: 41°FHi: 5°C | Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C | Hi: 59°FHi: 15°C Lo: 29°FLo: -2°C | Hi: 59°FHi: 15°C Lo: 29°FLo: -2°C | Lo: 35°FLo: 2°C | Hi: 55°FHi: 13°C Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C Lo: 29°FLo: -2°C | Hi: 55°FHi: 13°C Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C Lo: 31°FLo: -1°C |
| POP: 100% | POP: 100% | POP: 100% |
POP = Probability of Precipitation.
Weather Outlook Updated: 311 AM MDT Sun Oct 11 2026 
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Issued: 1254 AM MDT Sun Oct 11 2026
Key Messages
- An upper-level trough is producing areas of precipitation across Northeast Montana and will continue through Monday.
- Much cooler than average temperatures expected Sunday and Monday before warming back up by the end of next week.
- Snow accumulations possible in the Little Rockies and areas of higher elevations along the Canadian border. A winter weather advisory has been issued for Southwest Phillips County.
Discussion
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An upper-level low over the Pacific Northwest is continuing to di...