Tupper Lake, MT Weather Forecast
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Tupper Lake Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
| Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny |
| Lo: 35°FLo: 2°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 76°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 PM MDT Sat Oct 03 2026 

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Issued: 1251 PM MDT Sat Oct 3 2026
Discussion
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KEY MESSAGES:- Warming and drying trend through Sunday; cool/cold valley lows with patchy frost.
- Increased westerly winds on Monday-Tuesday
- Low confidence for unsettled weather next weekend
Visible satellite imagery this afternoon is pretty clear over the Northern Rockies, with just some high clouds streaming over the Idaho Panhandle and northwest Montana. A ridge of high pressure will continue to build through Sunday, keeping daytime high temperatures about 10-15 degrees above normal...
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