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Upper Thompson Lake, MT Weather Forecast
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Upper Thompson Lake Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
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| Mostly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain | Patchy Fog | Patchy Fog | Partly Cloudy | Partly Cloudy | Partly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain |
| Lo: 50°FLo: 10°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 56°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 36°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 36°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C |
| POP: 50% | POP: 70% | POP: 30% | POP: 30% | POP: 30% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 PM MDT Thu Sep 24 2026 
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Issued: 1239 PM MDT Thu Sep 24 2026
Discussion
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KEY MESSAGES:- Cold front tomorrow with gusty winds and some showers.
- Cutoff low this weekend brings rain and possibly some snow showers to northwest Montana and Glacier National Park.
A cold front moving across the region tomorrow will mainly cause gusty winds and some light showers in northwest Montana. A wind advisory has been issued for portions of northwest Montana due to the potential for wind gusts over 40 mph. While predominant winds are expected to stay under 30 mph, at least...