Square Butte, MT 14 Day Weather - WeatherWorld.com
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Square Butte, MT Weather Forecast


Square Butte, MT Weather Forecast Dated: 219 AM Thu Sep 10 2026
Expect a cool pattern with a mix of sun and clouds and mostly dry weather over the coming period. moderate humidity and no major pressure swings will dominate.
Thursday, September 10, 2026
Mid-Morning
73°F 23°C
Sunny
Mid-Afternoon
84°F 29°C
Cloudy
Early-Evening
74°F 23°C
Cloudy
Warm and summery near 84°F 29°C, sunny in the morning, becoming overcast through the afternoon and evening, with increasing humidity and steady pressure. Winds easing from WSW 24 mph 38 km/h to WNW 14 mph 22 km/h. Gusts up to 20 mph 32 km/h.
Friday, September 11, 2026
Mid-Morning
52°F 11°C
Overcast
Mid-Afternoon
55°F 13°C
Overcast
Early-Evening
53°F 12°C
Scattered Showers
Cool and brisk at 55°F 13°C, scattered downpours possible, with steady humidity and barometric pressure rising. Winds switching from the NW to the NNW at 8 mph 13 km/h.
Saturday, September 12, 2026
Mid-Morning
48°F 9°C
Overcast
Mid-Afternoon
52°F 11°C
Overcast
Early-Evening
51°F 11°C
Overcast
Chilly near 52°F 11°C, overcast throughout the day, with steady humidity and steady pressure. Winds moving from the E to the ENE at 11 mph 17 km/h.
Sunday, September 13, 2026
Mid-Morning
41°F 5°C
Rain
Mid-Afternoon
36°F 2°C
Heavy Snow
Early-Evening
39°F 4°C
Light Showers
Nippy around 36°F 2°C, rounds of showers expected off and on all day, with steady humidity and barometric pressure rising. Snow accumulation up to 2 in. up to 5 cm. Winds swinging from the ENE to the W at 5 mph 8 km/h.
Monday, September 14, 2026
Mid-Morning
41°F 5°C
Sunny
Mid-Afternoon
57°F 14°C
Sunny
Early-Evening
56°F 13°C
Cloudy
Brisk around 57°F 14°C, sunny through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.
Tuesday, September 15, 2026
Mid-Morning
53°F 12°C
Sunny
Mid-Afternoon
59°F 15°C
Partly Cloudy
Early-Evening
49°F 10°C
Partly Cloudy
Mildly cool near 59°F 15°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with increasing humidity and barometric pressure rising. Winds building from NNW at 3 mph 5 km/h to NW at 12 mph 19 km/h.
Wednesday, September 16, 2026
Mid-Morning
44°F 7°C
Overcast
Mid-Afternoon
42°F 6°C
Scattered Showers
Early-Evening
41°F 5°C
Overcast
Nippy around 42°F 6°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure rising. Winds turning from the NNW to the N at 7 mph 11 km/h.
Thursday, September 17, 2026
Mid-Morning
45°F 7°C
Sunny
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
57°F 14°C
Sunny
Cool with a high near 63°F 17°C, sunny throughout the day, with lower humidity and steady pressure.
Friday, September 18, 2026
Mid-Morning
55°F 13°C
Sunny
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
67°F 20°C
Sunny
Mild temperatures up to 73°F 23°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Saturday, September 19, 2026
Mid-Morning
62°F 17°C
Partly Cloudy
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
73°F 23°C
Partly Cloudy
Very warm with a high of 81°F 27°C, partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with steady humidity and barometric pressure falling. Winds switching from the SSE to the WNW at 9 mph 14 km/h.
Sunday, September 20, 2026
Mid-Morning
60°F 16°C
Overcast
Mid-Afternoon
67°F 19°C
Sunny
Early-Evening
59°F 15°C
Sunny
Comfortable at 67°F 19°C, overcast in the morning, becoming sunny through the afternoon and evening, with increasing humidity and steady pressure. Winds blowing from the W at 23 mph 37 km/h. Gusts up to 20 mph 33 km/h.
Monday, September 21, 2026
Mid-Morning
58°F 14°C
Sunny
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
64°F 18°C
Sunny
Comfortable with temperatures reaching 69°F 20°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the W to the S at 5 mph 9 km/h.
Tuesday, September 22, 2026
Mid-Morning
59°F 15°C
Partly Cloudy
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
69°F 21°C
Overcast
Enjoyable around 77°F 25°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure.
Wednesday, September 23, 2026
Mid-Morning
61°F 16°C
Partly Cloudy
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
72°F 22°C
Sunny
Mild temperatures up to 77°F 25°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and barometric pressure falling.
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