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Flathead High School Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
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| Chance of Rain | Chance of Rain | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Chance of Rain | Partly Cloudy | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 66°FHi: 19°C | Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C |
| POP: 20% | POP: 50% | POP: 50% | POP: 50% | POP: 80% | POP: 90% | POP: 70% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1222 PM MDT Fri Sep 04 2026 
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Issued: 1254 PM MDT Fri Sep 4 2026
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KEY MESSAGES:- Some stronger showers and storms possible Saturday especially during the 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.
A broad trough of low pressure over the Pacific Northwest will maintain unseasonably cool conditions across western Montana and north-central Idaho, with valley high temperatures remaining 5 to 10 degrees ...