Weather WorldDewey Lake, MT 14 Day Weather
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Dewey Lake, MT Weather Forecast
Dewey Lake, MT Weather Forecast Dated: 716 PM Tue Oct 20 2026
Expect a cool pattern with a mix of sun and clouds and frequent chances of rain over the coming period. moderate humidity and no major pressure swings will dominate.
Tuesday, October 20, 2026
Mid-Morning
37°F 3°C
Overcast
Mid-Afternoon
45°F 7°C
Scattered Showers
Early-Evening
42°F 6°C
Light Snow
Brisk around 45°F 7°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds turning from the SW to the SSW at 5 mph 8 km/h.
Wednesday, October 21, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
47°F 8°C
Scattered Showers
Early-Evening
47°F 8°C
Scattered Showers
Cool and brisk at 47°F 8°C, scattered downpours possible, with steady humidity and steady pressure. Winds blowing from the SW at 9 mph 14 km/h.
Thursday, October 22, 2026
Mid-Morning
44°F 7°C
Sunny
Mid-Afternoon
52°F 11°C
Scattered Showers
Early-Evening
51°F 10°C
Cloudy
Chilly near 52°F 11°C, locally heavy downpours at times, with steady humidity and barometric pressure falling.
Friday, October 23, 2026
Mid-Morning
41°F 5°C
Overcast
Mid-Afternoon
37°F 3°C
Snow & Thunder
Early-Evening
29°F -2°C
Light Snow
Nippy around 37°F 3°C, drier morning followed by snow lasting through evening, with increasing humidity and barometric pressure rising. Winds moving from the SSW to the WSW at 10 mph 16 km/h.
Saturday, October 24, 2026
Mid-Morning
24°F -4°C
Sunny
Mid-Afternoon
36°F 2°C
Sunny
Early-Evening
37°F 3°C
Sunny
Biting cold near 36°F 2°C, sunny throughout the day, with steady humidity and steady pressure.
Sunday, October 25, 2026
Mid-Morning
23°F -5°C
Partly Cloudy
Mid-Afternoon
26°F -4°C
Freezing Rain
Early-Evening
17°F -9°C
Light Snow
Frigid with highs around 26°F -4°C, dry early, with freezing rain continuing through afternoon and evening, with steady humidity and steady pressure.
Monday, October 26, 2026
Mid-Morning
9°F -13°C
Snow
Mid-Afternoon
19°F -7°C
Freezing Rain
Early-Evening
25°F -5°C
Freezing Rain
Freezing near 19°F -7°C, rounds of snow expected off and on all day, with steady humidity and barometric pressure falling.
Tuesday, October 27, 2026
Mid-Morning
33°F 1°C
Sunny
Mid-Afternoon
38°F 3°C
Sunny
Early-Evening
35°F 2°C
Sunny
Biting cold near 38°F 3°C, sunny throughout the day, with increasing humidity and steady pressure. Winds out of the WSW at 5 mph 8 km/h.
Wednesday, October 28, 2026
Mid-Morning
31°F -1°C
Sunny
Mid-Afternoon
31°F -1°C
Partly Cloudy
Early-Evening
31°F -1°C
Partly Cloudy
Frigid with highs around 31°F -1°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and barometric pressure falling.
Thursday, October 29, 2026
Mid-Morning
36°F 2°C
Sunny
Mid-Afternoon
39°F 4°C
Sunny
Early-Evening
38°F 3°C
Sunny
Nippy around 39°F 4°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds shifting from the SSW to the SW at 12 mph 19 km/h.
Friday, October 30, 2026
Mid-Morning
36°F 2°C
Sunny
Mid-Afternoon
33°F 1°C
Light Snow Showers
Early-Evening
25°F -4°C
Heavy Snow & Thunder
Biting cold near 33°F 1°C, clouds and snow taking over for the afternoon and evening, with increasing humidity and steady pressure. Winds SW at 7 mph 12 km/h.
Saturday, October 31, 2026
Mid-Morning
26°F -3°C
Patchy Moderate Snow
Mid-Afternoon
28°F -2°C
Patchy Moderate Snow
Early-Evening
22°F -6°C
Light Snow
Frigid with highs around 28°F -2°C, on-and-off snow throughout the day, with steady humidity and barometric pressure falling. Winds out of the SW at 19 mph 30 km/h. Gusts up to 30 mph 49 km/h.
Sunday, November 1, 2026
Mid-Morning
22°F -5°C
Heavy Snow
Mid-Afternoon
23°F -5°C
Heavy Snow
Early-Evening
23°F -6°C
Freezing Rain
Freezing near 23°F -5°C, rounds of snow expected off and on all day, with steady humidity and barometric pressure rising. Snow accumulation up to 1 in. up to 3 cm. Winds moving from the WSW to the SW at 8 mph 12 km/h.
Monday, November 2, 2026
Mid-Morning
28°F -2°C
Overcast
Mid-Afternoon
32°F 0°C
Partly Cloudy
Early-Evening
34°F 1°C
Partly Cloudy
Biting cold near 32°F 0°C, cloudy in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds SW at 13 mph 21 km/h. Gusts up to 20 mph 32 km/h.
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