Sun River, MT 14 Day Weather - 59483 WeatherWorld.com
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Sun River, MT Weather Forecast


Sun River, MT Weather Forecast Dated: 344 PM Sun Sep 06 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, September 6, 2026
Mid-Morning
57°F 14°C
Drizzle
Mid-Afternoon
63°F 17°C
Drizzle
Early-Evening
58°F 15°C
Drizzle
Refreshing around 63°F 17°C, rounds of showers expected off and on all day, with steady humidity and barometric pressure falling. Winds picking up from E at 6 mph 9 km/h to NW at 14 mph 22 km/h. Gusts up to 20 mph 32 km/h.
Monday, September 7, 2026
Mid-Morning
55°F 13°C
Light Showers
Mid-Afternoon
58°F 14°C
Light Showers
Early-Evening
57°F 14°C
Overcast
Mildly cool near 58°F 14°C, showers lingering into the afternoon before clearing, with lower humidity and steady pressure. Winds building from SW at 3 mph 4 km/h to WSW at 16 mph 25 km/h. Gusts up to 24 mph 39 km/h.
Tuesday, September 8, 2026
Mid-Morning
54°F 12°C
Partly Cloudy
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
62°F 17°C
Cloudy
Comfortable at 61°F 16°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds moving from the WSW to the WNW at 8 mph 14 km/h.
Wednesday, September 9, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
78°F 25°C
Sunny
Early-Evening
71°F 22°C
Sunny
Mild temperatures up to 78°F 25°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds out of the W at 18 mph 28 km/h.
Thursday, September 10, 2026
Mid-Morning
68°F 20°C
Sunny
Mid-Afternoon
82°F 28°C
Sunny
Early-Evening
74°F 24°C
Partly Cloudy
Very warm with a high of 82°F 28°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds shifting from the SW to the WNW at 12 mph 18 km/h.
Friday, September 11, 2026
Mid-Morning
53°F 12°C
Overcast
Mid-Afternoon
65°F 18°C
Overcast
Early-Evening
61°F 16°C
Sunny
Mildly cool near 65°F 18°C, overcast through the afternoon, turning sunny this evening, with steady humidity and barometric pressure falling. Winds turning from the NE to the N at 10 mph 16 km/h.
Saturday, September 12, 2026
Mid-Morning
52°F 11°C
Partly Cloudy
Mid-Afternoon
60°F 16°C
Scattered Showers
Early-Evening
51°F 11°C
Light Showers
Comfortable at 60°F 16°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds picking up from NNE at 4 mph 7 km/h to N at 16 mph 25 km/h. Gusts up to 25 mph 40 km/h.
Sunday, September 13, 2026
Mid-Morning
51°F 11°C
Overcast
Mid-Afternoon
62°F 17°C
Scattered Showers
Early-Evening
56°F 13°C
Scattered Showers
Cool with a high near 62°F 17°C, scattered downpours possible, with lower humidity and steady pressure. Winds building from NW at 2 mph 3 km/h to SSW at 14 mph 23 km/h. Gusts up to 21 mph 34 km/h.
Monday, September 14, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
72°F 22°C
Sunny
Early-Evening
65°F 18°C
Sunny
Mild temperatures up to 72°F 22°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the SW to the WNW at 10 mph 16 km/h.
Tuesday, September 15, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
69°F 20°C
Sunny
Early-Evening
58°F 15°C
Scattered Showers
Mild with a high of 69°F 20°C, periods of heavy rain and gusty conditions, with increasing humidity and barometric pressure rising. Winds picking up from NW at 5 mph 8 km/h to N at 17 mph 27 km/h. Gusts up to 20 mph 32 km/h.
Wednesday, September 16, 2026
Mid-Morning
52°F 11°C
Sunny
Mid-Afternoon
69°F 21°C
Sunny
Early-Evening
65°F 18°C
Sunny
Pleasant near 69°F 21°C, sunny throughout the day, with lower humidity and barometric pressure falling.
Thursday, September 17, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
80°F 26°C
Overcast
Early-Evening
70°F 21°C
Overcast
Balmy with temperatures reaching 80°F 26°C, sunny in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure. Winds turning from the SSW to the NNW at 10 mph 15 km/h.
Friday, September 18, 2026
Mid-Morning
46°F 8°C
Scattered Showers
Mid-Afternoon
44°F 6°C
Overcast
Early-Evening
43°F 6°C
Scattered Showers
Nippy around 44°F 6°C, periods of heavy rain and gusty conditions, with steady humidity and barometric pressure rising. Winds switching from the N to the NW at 12 mph 19 km/h.
Saturday, September 19, 2026
Mid-Morning
40°F 5°C
Cloudy
Mid-Afternoon
56°F 13°C
Sunny
Early-Evening
52°F 11°C
Sunny
Cool and brisk at 56°F 13°C, cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds moving from the NW to the SSE at 5 mph 8 km/h.
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