Duncan Lake, MT 14 Day Weather
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Duncan Lake, MT Weather Forecast


Duncan Lake, MT Weather Forecast Dated: 759 AM Thu Oct 15 2026
Expect a cool pattern with more clouds than sun and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Thursday, October 15, 2026
Mid-Morning
39°F 4°C
Sunny
Mid-Afternoon
57°F 14°C
Sunny
Early-Evening
50°F 10°C
Sunny
Brisk around 57°F 14°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Friday, October 16, 2026
Mid-Morning
39°F 4°C
Partly Cloudy
Mid-Afternoon
60°F 16°C
Sunny
Early-Evening
52°F 11°C
Overcast
Mildly cool near 60°F 16°C, partly cloudy in the morning, sunny in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling.
Saturday, October 17, 2026
Mid-Morning
44°F 6°C
Sunny
Mid-Afternoon
71°F 22°C
Overcast
Early-Evening
58°F 14°C
Overcast
Enjoyable around 71°F 22°C, sunny in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the S to the SSW at 9 mph 14 km/h.
Sunday, October 18, 2026
Mid-Morning
43°F 6°C
Sunny
Mid-Afternoon
60°F 16°C
Sunny
Early-Evening
52°F 11°C
Overcast
Cool with a high near 60°F 16°C, sunny through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling.
Monday, October 19, 2026
Mid-Morning
42°F 6°C
Overcast
Mid-Afternoon
60°F 15°C
Overcast
Early-Evening
53°F 12°C
Overcast
Refreshing around 60°F 15°C, overcast throughout the day, with lower humidity and barometric pressure falling.
Tuesday, October 20, 2026
Mid-Morning
44°F 7°C
Overcast
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
52°F 11°C
Overcast
Mildly cool near 61°F 16°C, overcast throughout the day, with lower humidity and steady pressure.
Wednesday, October 21, 2026
Mid-Morning
45°F 7°C
Overcast
Mid-Afternoon
54°F 12°C
Light Rain
Early-Evening
47°F 9°C
Light Rain
Chilly near 54°F 12°C, drier morning followed by showers lasting through evening, with increasing humidity and steady pressure.
Thursday, October 22, 2026
Mid-Morning
47°F 8°C
Scattered Showers
Mid-Afternoon
56°F 13°C
Overcast
Early-Evening
50°F 10°C
Overcast
Crisp with a high near 56°F 13°C, scattered downpours possible, with lower humidity and barometric pressure rising. Winds switching from the NE to the SSE at 7 mph 12 km/h.
Friday, October 23, 2026
Mid-Morning
37°F 3°C
Scattered Showers
Mid-Afternoon
47°F 8°C
Scattered Showers
Early-Evening
40°F 5°C
Overcast
Brisk around 47°F 8°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds moving from the S to the SSE at 9 mph 15 km/h.
Saturday, October 24, 2026
Mid-Morning
34°F 1°C
Overcast
Mid-Afternoon
43°F 6°C
Overcast
Early-Evening
40°F 5°C
Overcast
Nippy around 43°F 6°C, overcast throughout the day, with lower humidity and barometric pressure falling.
Sunday, October 25, 2026
Mid-Morning
33°F 1°C
Overcast
Mid-Afternoon
46°F 8°C
Overcast
Early-Evening
40°F 5°C
Scattered Showers
Chilly near 46°F 8°C, scattered downpours possible, with lower humidity and barometric pressure falling.
Monday, October 26, 2026
Mid-Morning
30°F -1°C
Sunny
Mid-Afternoon
46°F 8°C
Sunny
Early-Evening
39°F 4°C
Partly Cloudy
Crisp with a high near 46°F 8°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling.
Tuesday, October 27, 2026
Mid-Morning
34°F 1°C
Overcast
Mid-Afternoon
35°F 2°C
Heavy Snow
Early-Evening
35°F 2°C
Heavy Snow
Nippy around 35°F 2°C, drier morning followed by snow lasting through evening, with increasing humidity and steady pressure. Snow accumulation up to 2 in. up to 5 cm.
Wednesday, October 28, 2026
Mid-Morning
33°F 1°C
Heavy Snow
Mid-Afternoon
37°F 3°C
Light Snow
Early-Evening
36°F 3°C
Fog
Biting cold near 37°F 3°C, snow lingering into the afternoon before clearing, with steady humidity and steady pressure. Snow accumulation up to 1 in. up to 3 cm.
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