Weather WorldPark Lake, MT Weather Forecast
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Park Lake Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | | |  |  |  | |  |  | |  |
| Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Chance of Rain | Chance of T-Storm | Rain and Snow | Snow and Rain | Partly Cloudy | Partly Cloudy | Mostly Sunny | Chance of Snow |
| Hi: 55°FHi: 13°C | Lo: 36°FLo: 2°C | Hi: 56°FHi: 13°C | Lo: 39°FLo: 4°C | Hi: 56°FHi: 13°C | Lo: 37°FLo: 3°C | Hi: 41°FHi: 5°C | Lo: 25°FLo: -4°C | Hi: 38°FHi: 3°C Lo: 25°FLo: -4°C | Hi: 38°FHi: 3°C Lo: 25°FLo: -4°C | Hi: 44°FHi: 7°C | Lo: 29°FLo: -2°C |
| POP: 20% | POP: 100% | POP: 100% | POP: 70% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 336 AM MDT Tue Oct 20 2026 
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Issued: 502 AM MDT Tue Oct 20 2026
Key Messages
- Temperatures will be a roller coaster over the next several days with a mid-week warmup followed by another drop to near or slightly below seasonal averages for the weekend.
- Rain and Mountain snow will overspread the region Friday into Saturday bringing healthy liquid precipitation to lower elevations and accumulating snowfall above 4kft.
- Gusty winds develop across the area Friday afternoon into early Saturday morning. Highest gusts will be across Central MT and the Hi-Line.