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Big Creek Lakes Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Mostly Cloudy | Chance of Rain | Chance of T-Storm | Partly Cloudy | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Chance of T-Storm | Chance of Rain | Chance of T-Storm | Chance of T-Storm |
| Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 85°FHi: 29°C | Lo: 50°FLo: 10°C | Hi: 86°FHi: 30°C | Lo: 55°FLo: 13°C | Hi: 80°FHi: 27°C | Lo: 46°FLo: 8°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 AM MDT Mon Aug 17 2026 
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Big Creek Lakes Forecast Discussion
Issued: 405 AM MDT Mon Aug 17 2026
Discussion
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KEY MESSAGES:
- Shower and thunderstorm activity will continue each afternoon through Tuesday.
- Warming and drying latter part of next week under a ridge of high pressure.
The Northern Rockies will continue to be impacted by afternoon showers and thunderstorms. Once again these storms will be capable of moderate to heavy rain, small hail and lightning. The shower activity will linger into the evening hours then diminish after sunset.
A weak disturbance is st...