Weather WorldSixmile Trail, MT Weather Forecast
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Sixmile Trail Weather Forecast
| TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 | |  |  | | | | |  |  | | |
| Patchy Fog | Patchy Fog | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Sunny |
| Lo: 40°FLo: 4°C | Hi: 70°FHi: 21°C | Lo: 40°FLo: 4°C | Hi: 76°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 76°FHi: 24°C | Lo: 46°FLo: 8°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 113 PM MDT Fri Oct 02 2026 
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Issued: 126 PM MDT Fri Oct 2 2026
Discussion
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KEY MESSAGES:- Warming and drying trend through Sunday; cool/cold valley lows with patchy frost.
- Increased westerly winds on Monday.
A ridge of high pressure will be building over the Northern Rockies this weekend causing a warming and drying trend. Then on Monday into Tuesday a weak disturbance moves along the Canadian border causing the ridge to flatten. The biggest impact from this disturbance will be increased westerly winds on Monday afternoon.
A strong ridge of high pressure buil...