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Duncan, MT Weather Forecast
Duncan, MT Weather Forecast Date: 336 PM MDT Tue Aug 04 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.
Tonight... Mostly clear. Patchy smoke early in the evening. Lows 42 to 48. West winds up to 10 mph.
Wednesday... Warmer, sunny. Patchy smoke. Highs 71 to 81. West winds up to 10 mph.
Wednesday Night... Mostly clear. Patchy smoke. Lows 46 to 52. West winds up to 10 mph.
Thursday... Warmer, sunny. Highs 77 to 87. West winds up to 15 mph.
Thursday Night... Mostly clear. Lows 49 to 55. West winds up to 10 mph. Gusts up to 25 mph in the evening.
Friday... Sunny. Highs 81 to 91.
Friday Night... Mostly clear. Lows 51 to 57.
Saturday... Sunny. Highs 80 to 90.
Saturday Night... Mostly clear. Lows 50 to 58. Highs 73 to 87.
Sunday... Mostly clear. Lows 50 to 58. Highs 73 to 87.
Monday... Mostly clear. Lows 50 to 58. Highs 73 to 87.
POP = Probability of Precipitation
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