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Duncan, MT 7-Day Night Weather Forecast
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Duncan, MT Weather Forecast
Duncan, MT Weather Forecast Date: 1136 PM MDT Sun Oct 11 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... Patchy blowing snow late in the evening. Patchy blowing snow after midnight. Snow late in the evening, then chance of snow early in the morning. Snow May be heavy at times late in the evening. Visibility one quarter mile or less at times late in the evening. New snow accumulation of 1 to 3 inches. Total snow accumulation 1 to 8 inches. Near steady temperature in the lower 20s. Northeast winds 10 to 20 mph with gusts to around 45 mph. Chance of snow near 100%.
Columbus Day... Cloudy with a 20% chance of snow in the morning, then partly sunny in the afternoon. Highs 30 to 36. Northeast winds up to 10 mph shifting to the southeast in the afternoon.
Monday Night... Mostly cloudy in the evening then becoming partly cloudy. Lows 19 to 25. Southwest winds up to 10 mph. Gusts up to 25 mph after midnight.
Tuesday... Mostly sunny. Highs in the upper 30s. West winds up to 10 mph. Gusts up to 25 mph in the morning.
Tuesday Night... Mostly clear. Lows 21 to 27. Southwest winds up to 10 mph.
Wednesday... Mostly clear. Highs 42 to 52. Lows 27 to 33.
Thursday... Mostly clear. Highs 42 to 52. Lows 27 to 33.
Friday... Mostly clear. Highs 52 to 63. Lows 33 to 39.
Saturday... Mostly clear. Highs 52 to 63. Lows 33 to 39.
Saturday Night... Partly cloudy. Lows 34 to 42. Highs 53 to 61.
POP = Probability of Precipitation
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