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Duncan, MT 14 Day Weather
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Duncan, MT Weather Forecast
Duncan, MT Weather Forecast Dated: 338 AM Sun Oct 11 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. generally humid conditions and a stable pattern will dominate.
Sunday, October 11, 2026
Mid-Morning
29°F -2°C
Heavy Snow
Mid-Afternoon
31°F -1°C
Snow
Early-Evening
30°F -2°C
Heavy Snow
Freezing near 31°F -1°C, rounds of snow expected off and on all day, with steady humidity and steady pressure. New snow accumulation of 4 to 7 in. 10 to 18 cm.
Monday, October 12, 2026
Mid-Morning
23°F -5°C
Partly Cloudy
Mid-Afternoon
36°F 2°C
Fog
Early-Evening
33°F 0°C
Fog
Biting cold near 36°F 2°C, cloudy in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling.
Tuesday, October 13, 2026
Mid-Morning
26°F -3°C
Sunny
Mid-Afternoon
39°F 4°C
Fog
Early-Evening
32°F 0°C
Fog
Cold with a high near 39°F 4°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Wednesday, October 14, 2026
Mid-Morning
27°F -3°C
Sunny
Mid-Afternoon
48°F 9°C
Partly Cloudy
Early-Evening
35°F 2°C
Fog
Crisp with a high near 48°F 9°C, sunny in the morning, partly cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling.
Thursday, October 15, 2026
Mid-Morning
33°F 0°C
Light Fog
Mid-Afternoon
48°F 9°C
Scattered Showers
Early-Evening
39°F 4°C
Fog
Brisk around 48°F 9°C, scattered downpours possible, with steady humidity and barometric pressure rising.
Friday, October 16, 2026
Mid-Morning
36°F 2°C
Sunny
Mid-Afternoon
53°F 12°C
Sunny
Early-Evening
38°F 3°C
Partly Cloudy
Cool and brisk at 53°F 12°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Saturday, October 17, 2026
Mid-Morning
36°F 2°C
Partly Cloudy
Mid-Afternoon
63°F 17°C
Overcast
Early-Evening
47°F 8°C
Overcast
Comfortable at 63°F 17°C, cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and barometric pressure falling. Winds out of the SW at 0 mph 1 km/h.
Sunday, October 18, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
64°F 18°C
Overcast
Early-Evening
48°F 9°C
Cloudy
Cool with a high near 64°F 18°C, overcast through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Monday, October 19, 2026
Mid-Morning
42°F 5°C
Cloudy
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
46°F 8°C
Sunny
Refreshing around 61°F 16°C, overcast through the afternoon, turning sunny this evening, with steady humidity and steady pressure. Winds blowing from the WNW at 10 mph 16 km/h.
Tuesday, October 20, 2026
Mid-Morning
40°F 4°C
Overcast
Mid-Afternoon
53°F 12°C
Overcast
Early-Evening
40°F 5°C
Partly Cloudy
Cool and brisk at 53°F 12°C, overcast through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds moving from the SW to the SSW at 5 mph 8 km/h.
Wednesday, October 21, 2026
Mid-Morning
36°F 2°C
Overcast
Mid-Afternoon
54°F 12°C
Sunny
Early-Evening
39°F 4°C
Cloudy
Chilly near 54°F 12°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling.
Thursday, October 22, 2026
Mid-Morning
38°F 3°C
Overcast
Mid-Afternoon
57°F 14°C
Overcast
Early-Evening
43°F 6°C
Overcast
Crisp with a high near 57°F 14°C, overcast throughout the day, with increasing humidity and barometric pressure falling.
Friday, October 23, 2026
Mid-Morning
37°F 3°C
Sunny
Mid-Afternoon
56°F 13°C
Sunny
Early-Evening
41°F 5°C
Overcast
Brisk around 56°F 13°C, sunny through the afternoon, turning overcast this evening, with lower humidity and steady pressure. Winds out of the WNW at 8 mph 13 km/h.
Saturday, October 24, 2026
Mid-Morning
37°F 3°C
Sunny
Mid-Afternoon
58°F 15°C
Sunny
Early-Evening
42°F 6°C
Sunny
Mildly cool near 58°F 15°C, sunny throughout the day, with steady humidity and steady pressure.
Duncan, MT Weather Radar Map
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