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Duncan Weather Forecast
Duncan, MT Weather Forecast Date: 336 PM MDT Sun Oct 18 2026
Weather forecast for Duncan, MT
Tonight Lo: 38°F Lo: 3°C |
Tonight... Mostly clear. Lows 34 to 40. East winds up to 5 mph shifting to the south with gusts to around 20 mph after midnight. |
Mon Hi: 63°FHi: 17°C Lo: 39°F Lo: 4°C |
Monday... Warmer. Mostly sunny. Highs 58 to 66. South winds up to 10 mph with gusts to around 25 mph. |
| Tue Hi: 57°FHi: 14°C Lo: 38°F Lo: 3°C |
Tuesday... Mostly sunny. Highs 52 to 60. Northeast winds up to 5 mph. |
| Wed Hi: 62°FHi: 17°C Lo: 43°F Lo: 6°C |
Wednesday... Sunny. Highs 57 to 65. |
Thu Hi: 61°FHi: 16°C Lo: 39°F Lo: 4°C |
Thursday... Mostly sunny. A 20% chance of rain in the afternoon. Highs 56 to 64. |
Fri Hi: 43°FHi: 6°C Lo: 29°F Lo: -2°C |
Friday... Cooler, cloudy. Rain likely in the morning, then chance of rain and snow in the afternoon. Light snow accumulations. Highs 39 to 45. Chance of precipitation 70%. |
Sat Hi: 41°FHi: 5°C Lo: 29°F Lo: -2°C |
Saturday... Partly sunny. Highs 37 to 43. |
Duncan Radar Loop
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