Upper Coffin Lake, MT Weather Forecast
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Upper Coffin Lake Weather Forecast
| REST OF TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm |
| Lo: 58°FLo: 14°C | Hi: 76°FHi: 24°C | Lo: 53°FLo: 12°C | Hi: 74°FHi: 23°C | Lo: 49°FLo: 9°C | Hi: 74°FHi: 23°C | Lo: 51°FLo: 11°C | Hi: 73°FHi: 23°C | Lo: 51°FLo: 11°C | Hi: 74°FHi: 23°C | Lo: 50°FLo: 10°C | Hi: 72°FHi: 22°C |
| POP: 50% | POP: 50% | POP: 30% | POP: 40% | POP: 20% | POP: 40% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1102 PM MDT Fri Aug 21 2026 

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Issued: 1155 PM MDT Fri Aug 21 2026
Key Messages
- Scattered showers and thunderstorms, a few of which may be severe, Saturday and Sunday.
- Elevated fire weather conditions Sunday as breezy winds develop in most areas behind a front.
- On the warmer side of average next week with scattered showers and thunderstorms most days.
Discussion
... /Issued 1154 PM MDT Fri Aug 21 2026/- Meteorological Overview:
The ridge axis associated with a high amplitude upper level ridge across the Northern Rockies will begin shifting east of the area late toni...
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