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Lupine Lake Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  |  |  |  |  | | | | | |
| Mostly Sunny | Partly Cloudy | Mostly Cloudy | Chance of Showers | Clearing | Mostly Clear | Patchy Fog | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy | Mostly Clear |
| Hi: 65°FHi: 18°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C |
| POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 206 AM MDT Mon Sep 28 2026 
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Issued: 110 AM MDT Mon Sep 28 2026
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KEY MESSAGES:- Near-normal temperatures with the weather pattern during this week, along with mostly dry conditions.
- Increasing winds Tuesday, especially across northwest Montana and the higher terrain.
- Scattered rain showers Tuesday night into early Wednesday then slight warming trend into the remainder of the week.
- Confidence increasing for a warmer and drier than normal early October beyond the 7 day forecast.
Widespread high/mid level cloud cover and a few light showers will gradu...