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Lois Lake Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Smoke | Partly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Chance of Rain | Partly Cloudy | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 75°FHi: 24°C | Lo: 40°FLo: 4°C | Hi: 76°FHi: 24°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 36°FLo: 2°C | Hi: 66°FHi: 19°C | Lo: 36°FLo: 2°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C |
| POP: 20% | POP: 80% | POP: 70% | POP: 30% | POP: 20% | POP: 20% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 206 AM MDT Mon Aug 31 2026 
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Issued: 102 AM MDT Mon Aug 31 2026
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KEY MESSAGES:- Chilly this morning with frost to high- elevation valleys.
- A brief warm-up with dry conditions and low relative humidities early this week.
- Increasing thunderstorm chances Tuesday afternoon into Wednesday, gusty outflow wind threat. Near-critical fire weather risk in southwest Montana.
- An active, cooler weather pattern with above-normal precipitation probabilities late this week.
Today through Tuesday: Optimal radiational cooling under clear skies, light winds, and a dr...