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Backside Trail, MT Weather Forecast
Backside Trail, MT Weather Forecast Date: 807 PM MDT Wed Oct 07 2026
The area/counties/county of: Upper Blackfoot And Macdonald Pass, including the cities of: Marysville, Lincoln, Flesher Pass, and Macdonald Pass.or toggle through each period.
Rest of Tonight... Mostly clear. Lows 38 to 46. West winds up to 10 mph.
Thursday... Sunny. Highs 63 to 71. West winds up to 10 mph with gusts to around 25 mph.
Thursday Night... Mostly cloudy. Lows 44 to 50. Southwest winds 5 to 15 mph.
Friday... Mostly sunny. Highs 64 to 72. Southwest winds 5 to 15 mph with gusts to around 35 mph.
Friday Night... Colder. Partly cloudy in the evening, then mostly cloudy with a 20% chance of rain after midnight. Lows 36 to 42. West winds 5 to 15 mph. Gusts up to 30 mph increasing to 40 mph after midnight.
Saturday... Cooler. Rain and snow likely in the morning, then snow likely and slight chance of rain in the afternoon. Light snow accumulations. Highs 42 to 50. Chance of precipitation 60%.
Saturday Night... Breezy, colder, snow. Heavy snow accumulations. Lows 20 to 26. Chance of snow near 100%.
Sunday... Colder. Snow in the morning, then snow likely in the afternoon. Light snow accumulations. Highs 26 to 32. Chance of snow 90%.
Sunday Night... Mostly cloudy with a 50% chance of snow. Near steady temperature in the mid 20s.
Columbus Day... Not as cold. Mostly cloudy with a 20% chance of snow in the morning, then mostly sunny in the afternoon. Highs 33 to 41.
Monday Night... Partly cloudy. Lows 23 to 29. Highs 41 to 49.
Tuesday... Partly cloudy. Lows 23 to 29. Highs 41 to 49.
Tuesday Night... Partly cloudy. A 20% chance of rain and snow after midnight. Lows 29 to 35.
POP = Probability of Precipitation
Backside Trail Radar Loop
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