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Duncan, Montana Weather Forecast
Duncan, Montana Weather
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Weather Forecast for Duncan, Montana : Flathead County
Issued: 1:01 am MST Dec 17, 2025 Latitude: 48.2046819 Longitude: -114.3009634 View on Google Maps

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Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
50% chance of snow on Today 30% chance of snow on Tonight 50% chance of snow on Thursday 50% chance of snow on Friday 50% chance of snow on Saturday 20% chance of snow on Sunday 20% chance of snow on Monday 20% chance of snow on Tuesday
High: 35 °F Low: 28°F High: 40°F High: 40°F High: 35°F High: 36°F High: 39°F High: 36°F
Low: 31°F Low: 25°F Low: 25°F Low: 26°F Low: 23°F  
Snow Snow Snow Snow Snow Snow Snow Snow
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Current Conditions at
KALISPELL - (KGPI)
43°
Feels like 35°F
Mostly Cloudy
as of 5:55 AM MST
Rel. Humidity: 86%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.12 in.
Flight Rule: VFR
Wind Data
15 MPH
170° South
Cloud Level(s): Few at 3200ft, Scattered at 4300ft, Broken at 8000ft
Current Conditions at
MULLAN PASS - (KMLP)
34°
Cloudy
Light Rain Mist
as of 5:05 AM PST
Rel. Humidity: 100%
Dew Point: 34°F
Visibility: 3 Miles
Pressure: 29.19 in.
Flight Rule: MVFR
Wind Data
8 MPH
Gust: 30 MPH
260° West
Cloud Level(s): Scattered at 400ft, Solid Overcast at 1100ft
Current Conditions at
MISSOULA - (KMSO)
48°
Feels like 42°F
Cloudy
as of 5:53 AM MST
Rel. Humidity: 70%
Dew Point: 39°F
Visibility: 10 Miles
Pressure: 29.20 in.
Flight Rule: VFR
Wind Data
13 MPH
150° Southeast
Cloud Level(s): Few at 5500ft, Broken at 7000ft, Solid Overcast at 9000ft
Current Conditions at
CUTBANK - (KCTB)
43°
Feels like 32°F
Clear
as of 5:56 AM MST
Rel. Humidity: 70%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.12 in.
Flight Rule: VFR
Wind Data
26 MPH
Gust: 39 MPH
240° Southwest
Cloud Level(s): Clear
50% chance of snow Today Today... A 50 percent chance of snow. Cloudy, then gradually becoming mostly sunny, with a temperature falling to around 35 by 5pm. Breezy, with a west wind 18 to 23 mph increasing to 24 to 29 mph in the morning. Winds could gust as high as 55 mph. Total daytime snow accumulation of less than a half inch possible.
30% chance of snow Tonight Tonight... A 30 percent chance of snow. Mostly cloudy, with a low around 28. West wind 16 to 21 mph becoming south 6 to 11 mph in the evening. Winds could gust as high as 30 mph. Little or no snow accumulation expected.
50% chance of snow Thursday Thursday... A 50 percent chance of snow. Cloudy, with a high near 40. South southeast wind 6 to 8 mph. New snow accumulation of less than a half inch possible.
50% chance of snow Thursday Night Thursday Night... A 50 percent chance of snow. Cloudy, with a low around 31. South southwest wind 9 to 13 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
50% chance of snow Friday Friday... A 50 percent chance of snow. Partly sunny, with a high near 40. West southwest wind 11 to 13 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
50% chance of snow Friday Night Friday Night... A 50 percent chance of snow. Mostly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.
50% chance of snow Saturday Saturday... A 50 percent chance of snow. Mostly cloudy, with a high near 35. New snow accumulation of less than a half inch possible.
20% chance of snow Saturday Night Saturday Night... A chance of snow. Mostly cloudy, with a low around 25.
20% chance of snow Sunday Sunday... A chance of snow. Mostly cloudy, with a high near 36.
20% chance of snow Sunday Night Sunday Night... A chance of snow. Mostly cloudy, with a low around 26.
20% chance of snow Monday Monday... A chance of snow. Mostly cloudy, with a high near 39.
20% chance of snow Monday Night Monday Night... A chance of snow. Mostly cloudy, with a low around 23.
20% chance of snow Tuesday Tuesday... A chance of snow. Mostly cloudy, with a high near 36.
Current Radar Image


Sun Almanac for Duncan, Montana
Sunrise: 08:23 AM
Sunset: 4:44 PM
Civil Sunrise:07:46 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 07:07 AM
Nautical Sunset: 6:01 PM
Astro Sunrise: 06:29 AM
Astro Sunset: 6:39 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.