Weather WorldBlacktail Trail, MT Weather Forecast
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Blacktail Trail Weather Forecast
| TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
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| Chance of Showers | Chance of Showers | Chance of Showers | Rain Showers | Chance of Showers | Patchy Fog | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Cloudy |
| Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 45°FLo: 7°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 76°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 76°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C |
| POP: 100% | POP: 40% | POP: 40% | POP: 50% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1223 PM MDT Sun Sep 13 2026 
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Issued: 1159 AM MDT Sun Sep 13 2026
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KEY MESSAGES:- Considerable showers continue with mountain snow above 6,500 feet late tonight into early Monday, mainly through central Idaho and northwest Montana.
- Drying and warming conditions by mid-week.
- Trending wetter late Thursday into Friday.
An upper low moving through eastern Washington will track into northwest Montana tonight, continuing to bring periodic showers, isolated thunderstorms, and gusty southwest winds across much of the Northern Rockies.
The heaviest precipitati...