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Trout Lake Trail Guide, MontanaTrout Lake, MT Weather Forecast
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| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  | | | |  |  |  |  | | |
| Mostly Sunny | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Rain and Snow | Chance of Snow | Partly Cloudy | Chance of Snow |
| Hi: 60°FHi: 16°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 36°FLo: 2°C | Hi: 56°FHi: 13°C | Lo: 30°FLo: -1°C | Hi: 36°FHi: 2°C | Lo: 25°FLo: -4°C | Hi: 36°FHi: 2°C | Lo: 26°FLo: -3°C |
| POP: 70% | POP: 90% | POP: 70% | POP: 20% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 AM MDT Mon Oct 19 2026 
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Issued: 214 AM MDT Mon Oct 19 2026
Discussion
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KEY MESSAGES:- Mild temperatures continue through Thursday.
- Unsettled weather, colder temperatures arrive Thursday night into next weekend.
Mild weather remains the main story across the Northern Rockies through the middle of the week. Our weather pattern is being driven by split flow, with a slow moving closed low near the California coast, and the main storm track focused north in Alaska and Canada. Day-time temperatures will run around 10 degrees above average across the region thr...