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Sun Lake, MT Weather Forecast
Sun Lake, MT Weather Forecast Dated: 723 AM Thu Oct 22 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. generally humid conditions and no major pressure swings will dominate.
Thursday, October 22, 2026
Mid-Morning
41°F 5°C
Partly Cloudy
Mid-Afternoon
64°F 18°C
Cloudy
Early-Evening
51°F 10°C
Partly Cloudy
Refreshing around 64°F 18°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and barometric pressure falling.
Friday, October 23, 2026
Mid-Morning
43°F 6°C
Light Rain
Mid-Afternoon
36°F 2°C
Heavy Snow
Early-Evening
31°F -1°C
Heavy Snow
Biting cold near 36°F 2°C, persistent showers off and on through the day, with steady humidity and barometric pressure rising. Snow accumulation up to 2 in. up to 5 cm.
Saturday, October 24, 2026
Mid-Morning
24°F -4°C
Partly Cloudy
Mid-Afternoon
43°F 6°C
Partly Cloudy
Early-Evening
32°F 0°C
Cloudy
Cold with a high near 43°F 6°C, partly cloudy through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling.
Sunday, October 25, 2026
Mid-Morning
26°F -3°C
Partly Cloudy
Mid-Afternoon
34°F 1°C
Partly Cloudy
Early-Evening
28°F -3°C
Cloudy
Nippy around 34°F 1°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure.
Monday, October 26, 2026
Mid-Morning
25°F -4°C
Partly Cloudy
Mid-Afternoon
44°F 7°C
Partly Cloudy
Early-Evening
31°F -1°C
Partly Cloudy
Biting cold near 44°F 7°C, partly cloudy through the afternoon, turning sunny this evening, with steady humidity and barometric pressure falling.
Tuesday, October 27, 2026
Mid-Morning
33°F 0°C
Cloudy
Mid-Afternoon
38°F 3°C
Overcast
Early-Evening
34°F 1°C
Overcast
Cold with a high near 38°F 3°C, overcast throughout the day, with increasing humidity and barometric pressure rising.
Wednesday, October 28, 2026
Mid-Morning
27°F -3°C
Heavy Snow
Mid-Afternoon
31°F -1°C
Heavy Snow
Early-Evening
29°F -2°C
Patchy Moderate Snow
Freezing near 31°F -1°C, rounds of snow expected off and on all day, with steady humidity and steady pressure. Snow accumulation up to 2 in. up to 5 cm.
Thursday, October 29, 2026
Mid-Morning
30°F -1°C
Partly Cloudy
Mid-Afternoon
36°F 2°C
Sunny
Early-Evening
30°F -1°C
Sunny
Biting cold near 36°F 2°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling.
Friday, October 30, 2026
Mid-Morning
30°F -1°C
Sunny
Mid-Afternoon
41°F 5°C
Partly Cloudy
Early-Evening
37°F 3°C
Sunny
Cold with a high near 41°F 5°C, partly cloudy throughout the day, with steady humidity and barometric pressure falling. Winds out of the WSW at 8 mph 13 km/h. Gusts up to 20 mph 32 km/h.
Saturday, October 31, 2026
Mid-Morning
37°F 3°C
Cloudy
Mid-Afternoon
43°F 6°C
Partly Cloudy
Early-Evening
36°F 2°C
Partly Cloudy
Nippy around 43°F 6°C, cloudy in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds blowing from the W at 6 mph 10 km/h.
Sunday, November 1, 2026
Mid-Morning
38°F 3°C
Partly Cloudy
Mid-Afternoon
44°F 6°C
Partly Cloudy
Early-Evening
34°F 1°C
Cloudy
Biting cold near 44°F 6°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Monday, November 2, 2026
Mid-Morning
37°F 3°C
Overcast
Mid-Afternoon
42°F 5°C
Scattered Showers
Early-Evening
37°F 3°C
Scattered Showers
Cold with a high near 42°F 5°C, locally heavy downpours at times, with increasing humidity and steady pressure.
Tuesday, November 3, 2026
Mid-Morning
41°F 5°C
Partly Cloudy
Mid-Afternoon
44°F 7°C
Scattered Showers
Early-Evening
39°F 4°C
Scattered Showers
Nippy around 44°F 7°C, periods of heavy rain and gusty conditions, with increasing humidity and steady pressure. Winds SW at 8 mph 13 km/h. Gusts up to 21 mph 33 km/h.
Wednesday, November 4, 2026
Mid-Morning
41°F 5°C
Partly Cloudy
Mid-Afternoon
46°F 8°C
Partly Cloudy
Early-Evening
38°F 3°C
Overcast
Cool and brisk at 46°F 8°C, cloudy in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds out of the WSW at 16 mph 26 km/h.
Sun Lake, MT Weather Radar Map
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