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Great Falls, MT Weather Forecast


Great Falls, MT Weather Forecast Dated: 1149 PM Sun Oct 04 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 4, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
68°F 20°C
Sunny
Pleasant near 74°F 23°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Monday, October 5, 2026
Mid-Morning
65°F 18°C
Partly Cloudy
Mid-Afternoon
84°F 29°C
Sunny
Early-Evening
73°F 23°C
Sunny
Balmy with temperatures reaching 84°F 29°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds turning from the SW to the WSW at 15 mph 23 km/h. Gusts up to 27 mph 44 km/h.
Tuesday, October 6, 2026
Mid-Morning
60°F 15°C
Sunny
Mid-Afternoon
78°F 26°C
Overcast
Early-Evening
67°F 20°C
Cloudy
Enjoyable around 78°F 26°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds switching from the WSW to the NE at 7 mph 11 km/h.
Wednesday, October 7, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
74°F 23°C
Cloudy
Early-Evening
61°F 17°C
Sunny
Mild temperatures up to 74°F 23°C, overcast in the morning, cloudy in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds moving from the WSW to the NE at 8 mph 13 km/h.
Thursday, October 8, 2026
Mid-Morning
51°F 11°C
Partly Cloudy
Mid-Afternoon
68°F 20°C
Cloudy
Early-Evening
60°F 15°C
Partly Cloudy
Mild with a high of 68°F 20°C, partly cloudy in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure.
Friday, October 9, 2026
Mid-Morning
51°F 10°C
Overcast
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
70°F 21°C
Cloudy
Warm and summery near 80°F 27°C, overcast in the morning, sunny in the afternoon, and overcast this evening, with lower humidity and barometric pressure falling. Winds picking up from S at 4 mph 6 km/h to SW at 13 mph 21 km/h. Gusts up to 29 mph 46 km/h.
Saturday, October 10, 2026
Mid-Morning
47°F 8°C
Partly Cloudy
Mid-Afternoon
39°F 4°C
Light Snow
Early-Evening
37°F 3°C
Light Snow Showers
Nippy around 39°F 4°C, drier morning followed by snow lasting through evening, with steady humidity and barometric pressure rising. Winds blowing from the NNW at 15 mph 25 km/h.
Sunday, October 11, 2026
Mid-Morning
32°F 0°C
Heavy Snow
Mid-Afternoon
33°F 0°C
Heavy Snow
Early-Evening
32°F 0°C
Heavy Snow
Biting cold near 33°F 0°C, persistent snow off and on through the day, with steady humidity and steady pressure. New snow accumulation of 3 to 6 in. 8 to 15 cm. Winds turning from the N to the NNE at 8 mph 13 km/h.
Monday, October 12, 2026
Mid-Morning
29°F -2°C
Light Snow
Mid-Afternoon
32°F 0°C
Freezing Rain
Early-Evening
28°F -2°C
Overcast
Cold with a high near 32°F 0°C, snow through the afternoon, tapering off by evening, with steady humidity and steady pressure.
Tuesday, October 13, 2026
Mid-Morning
24°F -5°C
Sunny
Mid-Afternoon
39°F 4°C
Sunny
Early-Evening
34°F 1°C
Fog
Nippy around 39°F 4°C, sunny through the afternoon, turning partly cloudy this evening, with steady humidity and barometric pressure falling.
Wednesday, October 14, 2026
Mid-Morning
33°F 0°C
Sunny
Mid-Afternoon
54°F 12°C
Sunny
Early-Evening
45°F 7°C
Sunny
Chilly near 54°F 12°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds switching from the SW to the SSW at 3 mph 5 km/h.
Thursday, October 15, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
56°F 13°C
Overcast
Early-Evening
47°F 9°C
Overcast
Crisp with a high near 56°F 13°C, sunny in the morning, overcast in the afternoon, and cloudy this evening, with steady humidity and barometric pressure rising. Winds moving from the SW to the WNW at 12 mph 19 km/h.
Friday, October 16, 2026
Mid-Morning
39°F 4°C
Sunny
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
46°F 8°C
Sunny
Brisk around 55°F 13°C, sunny in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds swinging from the WSW to the S at 5 mph 8 km/h.
Saturday, October 17, 2026
Mid-Morning
40°F 5°C
Sunny
Mid-Afternoon
65°F 18°C
Sunny
Early-Evening
55°F 13°C
Sunny
Mildly cool near 65°F 18°C, sunny throughout the day, with lower humidity and barometric pressure falling.
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