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Threetops Trail Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
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| Rain | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain | Chance of Rain | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Rain | Chance of Rain | Chance of Rain |
| Hi: 56°FHi: 13°C | Lo: 40°FLo: 4°C | Hi: 56°FHi: 13°C | Lo: 40°FLo: 4°C | Hi: 56°FHi: 13°C | Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 55°FHi: 13°C | Lo: 45°FLo: 7°C | Hi: 56°FHi: 13°C | Lo: 45°FLo: 7°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 60% | POP: 70% | POP: 70% | POP: 50% | POP: 70% | POP: 80% | POP: 70% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1223 AM MDT Thu Sep 03 2026 
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Issued: 315 AM MDT Thu Sep 3 2026
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KEY MESSAGES:- Widespread showers and seasonably cool temperatures persist through the rest of the week and into early next week.
- Critical fire weather continues for Southwest Montana today due to gusty winds and low humidity.
- Widespread heavy rain in North-Central Idaho late tonight through Friday morning.
A broad upper-level low over the Pacific Northwest will maintain cool and unsettled conditions across the region today. The threat for strong thunderstorms is minimal compared to W...