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Unionville, Montana Weather Forecast
Unionville, Montana Weather
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Click for High Wind Warning for Unionville, Montana
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Weather Forecast for Unionville, Montana : Lewis and Clark County
Issued: 9:18 am MST Dec 17, 2025 Latitude: 46.5413221 Longitude: -112.0850005 View on Google Maps

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Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
20% chance of snow on Today Mostly Cloudy on Tonight 60% chance of snow on Thursday 80% chance of rain & snow on Friday 30% chance of snow on Saturday Mostly Sunny on Sunday 20% chance of rain & snow on Monday 10% chance of rain & snow on Tuesday
High: 27 °F Low: 26°F High: 39°F High: 42°F High: 33°F High: 36°F High: 40°F High: 38°F
Low: 33°F Low: 24°F Low: 23°F Low: 30°F Low: 25°F  
Snow Mostly Cloudy Snow Rain & Snow Snow Mostly Sunny Rain & Snow Rain & Snow
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Current Conditions at
HELENA - (KHLN)
43°
Feels like 33°F
Cloudy
Light Rain
as of 10:02 AM MST
Rel. Humidity: 75%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.29 in.
Flight Rule: VFR
Wind Data
22 MPH
Gust: 32 MPH
260° West
Cloud Level(s): Broken at 3300ft, Broken at 4900ft, Solid Overcast at 6000ft
Current Conditions at
BUTTE - (KBTM)
43°
Feels like 33°F
Mostly Clear
as of 9:53 AM MST
Rel. Humidity: 52%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.36 in.
Flight Rule: VFR
Wind Data
23 MPH
Gust: 43 MPH
260° West
Cloud Level(s): Few at 2100ft, Few at 3800ft
Current Conditions at
BOZEMAN - (KBZN)
43°
Feels like 33°F
Cloudy
Light Rain
as of 10:26 AM MST
Rel. Humidity: 81%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.36 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 39 MPH
270° West
Cloud Level(s): Solid Overcast at 3400ft
Current Conditions at
GREAT FALLS - (KGTF)
46°
Feels like 37°F
Clear
as of 9:53 AM MST
Rel. Humidity: 70%
Dew Point: 37°F
Visibility: 10 Miles
Pressure: 29.11 in.
Flight Rule: VFR
Wind Data
28 MPH
Gust: 43 MPH
220° Southwest
Cloud Level(s): Clear
20% chance of snow Today Today... A 20 percent chance of snow between noon and 1pm. Mostly sunny, with a temperature falling to around 27 by 5pm. Windy, with a west wind 28 to 32 mph, with gusts as high as 55 mph.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 26. Breezy, with a west wind 23 to 28 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 55 mph.
60% chance of snow Thursday Thursday... Snow likely, mainly after 5pm. Mostly cloudy, with a high near 39. South wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
80% chance of rain & snow Thursday Night Thursday Night... Snow likely before 8pm, then rain, possibly mixed with snow. Low around 33. South southwest wind 10 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
80% chance of rain & snow Friday Friday... Rain, possibly mixed with snow, becoming all snow after 8am. High near 42. West wind 11 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 80%. 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 24. West southwest wind around 8 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.
30% chance of snow Saturday Saturday... A 30 percent chance of snow, mainly before 11am. Mostly sunny, with a high near 33. West southwest wind 8 to 14 mph, with gusts as high as 26 mph. Little or no snow accumulation expected.
10% chance of snow Saturday Night Saturday Night... A slight chance of snow before 11pm. Partly cloudy, with a low around 23. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 36.
20% chance of rain & snow Sunday Night Sunday Night... A chance of snow before 5am, then a chance of rain and snow. Mostly cloudy, with a low around 30.
20% chance of rain & snow Monday Monday... A chance of rain and snow. Partly sunny, with a high near 40.
10% chance of snow Monday Night Monday Night... A slight chance of snow. Mostly cloudy, with a low around 25.
10% chance of rain & snow Tuesday Tuesday... A slight chance of rain and snow. Partly sunny, with a high near 38.
Current Radar Image


Sun Almanac for Unionville, Montana
Sunrise: 08:07 AM
Sunset: 4:42 PM
Civil Sunrise:07:32 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 06:54 AM
Nautical Sunset: 5:56 PM
Astro Sunrise: 06:17 AM
Astro Sunset: 6:32 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.