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Sun River, Montana Weather Forecast
Sun River, Montana Weather
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Weather Forecast for Sun River, Montana : Cascade County
Issued: 9:43 pm MST Dec 17, 2025 Latitude: 47.5332872 Longitude: -111.7213719 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Cloudy on Tonight Mostly Cloudy on Thursday 30% chance of rain & snow on Friday Sunny on Saturday Mostly Sunny on Sunday 20% chance of rain & snow on Monday Mostly Sunny on Tuesday 10% chance of snow on Wednesday
Low: 24°F High: 45°F High: 48°F High: 40°F High: 45°F High: 42°F High: 43°F High: 44°F
Low: 47 °F Low: 27°F Low: 24°F Low: 26°F Low: 24°F Low: 24°F  
Cloudy Mostly Cloudy Rain & Snow Sunny Mostly Sunny Rain & Snow Mostly Sunny Snow
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Current Conditions at
GREAT FALLS - (KGTF)
19°
Clear
as of 8:53 PM MST
Rel. Humidity: 85%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 29.82 in.
Flight Rule: VFR
Wind Data
6 MPH
040° Northeast
Cloud Level(s): Clear
Current Conditions at
CUTBANK - (KCTB)
12°
Feels like -6°F
Clear
as of 8:56 PM MST
Rel. Humidity: 66%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 29.78 in.
Flight Rule: VFR
Wind Data
22 MPH
Gust: 31 MPH
340° North
Cloud Level(s): Clear
Cloudy on Tonight Tonight... Partly cloudy, with a low around 24. Blustery, with a west northwest wind 17 to 22 mph becoming southwest 11 to 16 mph after midnight. Winds could gust as high as 32 mph.

Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 45. South southwest wind 11 to 20 mph, with gusts as high as 29 mph.

40% chance of rain & snow Thursday Night Thursday Night... A chance of rain and snow before 11pm, then a chance of rain. Mostly cloudy, with a temperature rising to around 47 by 2am. Windy, with a southwest wind 22 to 30 mph, with gusts as high as 44 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

30% chance of rain & snow Friday Friday... A chance of rain and snow before 11am, then a slight chance of snow. Partly sunny, with a high near 48. Breezy, with a west wind 22 to 26 mph, with gusts as high as 38 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

20% chance of snow Friday Night Friday Night... A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 27. West southwest wind around 14 mph, with gusts as high as 22 mph.

Sunny on Saturday Saturday... Sunny, with a high near 40. Breezy, with a west southwest wind 14 to 19 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 36 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 24. Southwest wind 14 to 18 mph, with gusts as high as 28 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 45. South southwest wind 10 to 13 mph, with gusts as high as 21 mph.

20% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow, mainly after 5am. Mostly cloudy, with a low around 26.

20% chance of rain & snow Monday Monday... A chance of rain and snow before 8am, then a chance of snow. Partly sunny, with a high near 42.

10% chance of snow Monday Night Monday Night... A slight chance of snow. Partly cloudy, with a low around 24.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 43.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 24.

10% chance of snow Wednesday Wednesday... A slight chance of snow. Partly sunny, with a high near 44.

Current Radar Image


Sun Almanac for Sun River, Montana
Sunrise: 08:11 AM
Sunset: 4:37 PM
Civil Sunrise:07:35 AM
Civil Sunset: 5:13 PM
Nautical Sunrise: 06:55 AM
Nautical Sunset: 5:52 PM
Astro Sunrise: 06:18 AM
Astro Sunset: 6:30 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.