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Disappointment Lake Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  | | | |  |  |  |  |  |  |
| Patchy Fog | Mostly Cloudy | Clearing | Patchy Fog | Patchy Fog | Patchy Fog | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Chance of Rain | Mostly Clear | Mostly Sunny |
| Lo: 35°FLo: 2°C | Hi: 65°FHi: 18°C | Lo: 40°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 40°FLo: 4°C | Hi: 75°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 66°FHi: 19°C |
| POP: 60% | POP: 50% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1229 PM MDT Mon Sep 14 2026 
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Issued: 208 PM MDT Mon Sep 14 2026
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KEY MESSAGES:- Areas of frost on Tuesday morning.
- Drying and warming conditions by mid-week.
- Trending wetter late Thursday into Friday.
An upper-level low continues to track east toward the Northern Plains, leaving lingering mountain terrain showers along the Continental Divide. Scattered snow showers will continue for Logan Pass in Glacier NP into this evening leading to slushy conditions at times. Westerly winds gusting to 20-25 mph will diminish near sunset, yielding a cool, autumn...