Weather WorldMarion Lake, MT Weather Forecast
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Marion Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY |
 |  |  | |  | | | | | | | |
| Partly Cloudy | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Snow | Snow | Snow | Chance of Snow | Chance of Snow | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 36°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 36°FLo: 2°C | Hi: 45°FHi: 7°C | Lo: 25°FLo: -4°C | Hi: 35°FHi: 2°C | Lo: 25°FLo: -4°C | Hi: 45°FHi: 7°C | Lo: 26°FLo: -3°C | Hi: 46°FHi: 8°C |
| POP: 60% | POP: 70% | POP: 90% | POP: 70% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1223 PM MDT Wed Oct 07 2026 
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Issued: 1251 PM MDT Wed Oct 7 2026
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KEY MESSAGES:- Warm conditions continue through Friday.
- Gusty west winds Friday afternoon creating near-critical fire weather conditions across Southwest Montana.
- Sharp cold front Saturday brings a dramatic winter transition.
- Gusty east-northeast winds Saturday night.
- Hard freeze Monday and Tuesday mornings.
High pressure continues to keep conditions warm and dry across the Northern Rockies through late week, with temperatures remaining 15 degrees above normal through Friday. On Frida...