Mason Lake, MT 14 Day Weather
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Mason Lake, MT Weather Forecast


Mason Lake, MT Weather Forecast Dated: 1038 AM Sun Oct 18 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.
Sunday, October 18, 2026
Mid-Morning
42°F 6°C
Partly Cloudy
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
46°F 8°C
Sunny
Brisk around 55°F 13°C, partly cloudy in the morning, overcast in the afternoon, and sunny this evening, with steady humidity and steady pressure.
Monday, October 19, 2026
Mid-Morning
43°F 6°C
Sunny
Mid-Afternoon
57°F 14°C
Partly Cloudy
Early-Evening
47°F 8°C
Sunny
Cool and brisk at 57°F 14°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the S to the SE at 5 mph 7 km/h.
Tuesday, October 20, 2026
Mid-Morning
43°F 6°C
Overcast
Mid-Afternoon
57°F 14°C
Partly Cloudy
Early-Evening
47°F 9°C
Partly Cloudy
Chilly near 57°F 14°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with lower humidity and steady pressure.
Wednesday, October 21, 2026
Mid-Morning
43°F 6°C
Cloudy
Mid-Afternoon
54°F 12°C
Partly Cloudy
Early-Evening
47°F 8°C
Sunny
Crisp with a high near 54°F 12°C, cloudy through the afternoon, turning partly cloudy this evening, with lower humidity and steady pressure. Winds switching from the SSW to the S at 5 mph 8 km/h.
Thursday, October 22, 2026
Mid-Morning
45°F 7°C
Partly Cloudy
Mid-Afternoon
58°F 15°C
Cloudy
Early-Evening
50°F 10°C
Sunny
Refreshing around 58°F 15°C, partly cloudy in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling. Winds SW at 18 mph 29 km/h.
Friday, October 23, 2026
Mid-Morning
41°F 5°C
Light Sleet
Mid-Afternoon
46°F 8°C
Overcast
Early-Evening
34°F 1°C
Partly Cloudy
Cool and brisk at 46°F 8°C, morning sleet, giving way to clearing skies, with steady humidity and barometric pressure rising.
Saturday, October 24, 2026
Mid-Morning
30°F -1°C
Sunny
Mid-Afternoon
43°F 6°C
Overcast
Early-Evening
37°F 3°C
Cloudy
Nippy around 43°F 6°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and barometric pressure falling.
Sunday, October 25, 2026
Mid-Morning
35°F 2°C
Overcast
Mid-Afternoon
49°F 10°C
Sunny
Early-Evening
40°F 4°C
Overcast
Crisp with a high near 49°F 10°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds swinging from the SSW to the SSE at 5 mph 7 km/h.
Monday, October 26, 2026
Mid-Morning
32°F 0°C
Overcast
Mid-Afternoon
44°F 7°C
Cloudy
Early-Evening
33°F 1°C
Sunny
Cold with a high near 44°F 7°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure.
Tuesday, October 27, 2026
Mid-Morning
30°F -1°C
Heavy Snow
Mid-Afternoon
28°F -2°C
Heavy Snow & Thunder
Early-Evening
26°F -4°C
Snow
Freezing near 28°F -2°C, rounds of snow expected off and on all day, with steady humidity and barometric pressure rising. New snow accumulation of 3 to 6 in. 8 to 15 cm. Winds shifting from the SSW to the WSW at 7 mph 11 km/h. Gusts up to 22 mph 35 km/h.
Wednesday, October 28, 2026
Mid-Morning
21°F -6°C
Sunny
Mid-Afternoon
35°F 1°C
Sunny
Early-Evening
26°F -4°C
Sunny
Biting cold near 35°F 1°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling. Winds turning from the W to the SSW at 3 mph 5 km/h.
Thursday, October 29, 2026
Mid-Morning
29°F -2°C
Light Snow
Mid-Afternoon
28°F -2°C
Heavy Snow & Thunder
Early-Evening
17°F -9°C
Heavy Snow
Frigid with highs around 28°F -2°C, on-and-off snow throughout the day, with increasing humidity and barometric pressure rising. New snow accumulation of 2 to 5 in. 5 to 13 cm.
Friday, October 30, 2026
Mid-Morning
5°F -15°C
Sunny
Mid-Afternoon
17°F -8°C
Partly Cloudy
Early-Evening
11°F -12°C
Partly Cloudy
Freezing near 17°F -8°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling.
Saturday, October 31, 2026
Mid-Morning
13°F -10°C
Sunny
Mid-Afternoon
27°F -3°C
Sunny
Early-Evening
20°F -7°C
Sunny
Freezing temperatures near 27°F -3°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds out of the SW at 8 mph 12 km/h.
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