Prtrolla Lake, MT Weather Forecast
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Prtrolla Lake Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Partly Cloudy | Chance of Rain | Rain | Snow | Snow | Snow | Mostly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Sunny | Chance of Rain | Partly Cloudy |
| Lo: 50°FLo: 10°C | Hi: 61°FHi: 16°C | Lo: 31°FLo: -1°C | Hi: 41°FHi: 5°C | Lo: 29°FLo: -2°C | Hi: 41°FHi: 5°C | Lo: 29°FLo: -2°C | Hi: 51°FHi: 11°C Lo: 31°FLo: -1°C | Hi: 51°FHi: 11°C Lo: 31°FLo: -1°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 55°FHi: 13°C Lo: 35°FLo: 2°C |
| POP: 50% | POP: 100% | POP: 100% | POP: 100% |
POP = Probability of Precipitation.
Weather Outlook Updated: 357 PM MDT Fri Oct 09 2026 

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Issued: 215 PM MDT Fri Oct 9 2026
Key Messages
- A weather system has a chance of bringing mixed precipitation to the region Sunday through Monday.
- Colder temperatures follow Friday night`s strong cold frontal passage and linger through next week.
- Heaviest rainfall expected south of the Missouri River.
- Another chance of rain moves in for Wednesday and Thursday, glancing the SE zones.
Discussion
... Meteorological Overview:
High temperatures in the 80s are possible today, due to weak ridging aloft with shortwave ridges embedded, couple...
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