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Flathead High School Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
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| Rain | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Partly Cloudy | Mostly Sunny | Mostly Clear | Partly Cloudy | Chance of Rain |
| Hi: 66°FHi: 19°C | Lo: 46°FLo: 8°C | Hi: 66°FHi: 19°C | Lo: 46°FLo: 8°C | Hi: 56°FHi: 13°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C |
| POP: 50% | POP: 70% | POP: 50% | POP: 90% | POP: 100% | POP: 90% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 AM MDT Sat Sep 05 2026 
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Issued: 344 AM MDT Sat Sep 5 2026
Discussion
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KEY MESSAGES:- Some stronger showers and storms possible this afternoon.
- Widespread showers increasing Sunday into Monday with seasonably cool temperatures persisting into early next week.
- Gradual drying trend develops mid-week alongside morning valley fog.
Shower activity will wane this morning giving way to partial afternoon clearing. Solar heating will generate weak to modest instability, supporting spotty afternoon showers and thunderstorms capable of brief heavy rainfall, lightni...