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Union, Montana Weather Forecast
Union, Montana Weather
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Weather Forecast for Union, Montana : Dawson County
Issued: 2:26 am MST Dec 15, 2025 Latitude: 47.1872317 Longitude: -105.3063762 View on Google Maps

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Today Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
Clearing on Today Mostly Cloudy on Tonight Sunny on Tuesday 50% chance of rain & snow on Wednesday Mostly Sunny on Thursday 30% chance of rain & snow on Friday 20% chance of snow on Saturday Mostly Sunny on Sunday
High: 43°F Low: 35°F High: 33 °F High: 44°F High: 26°F High: 41°F High: 25°F High: 30°F
Low: 27°F Low: 3 °F Low: 16°F Low: 8 °F Low: 13°F  
Clearing Mostly Cloudy Sunny Rain & Snow Mostly Sunny Rain & Snow Snow Mostly Sunny
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Current Conditions at
GLENDIVE - (KGDV)
30°
Feels like 21°F
Clear
as of 5:56 AM MST
Rel. Humidity: 86%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.99 in.
Flight Rule: VFR
Wind Data
9 MPH
280° West
Cloud Level(s): Clear
Current Conditions at
MILES CITY - (KMLS)
25°
Clear
as of 5:53 AM MST
Rel. Humidity: 85%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.02 in.
Flight Rule: VFR
Wind Data
6 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
WOLF POINT - (KOLF)
18°
Clear
as of 5:53 AM MST
Rel. Humidity: 92%
Dew Point: 16°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
6 MPH
210° Southwest
Cloud Level(s): Clear
Clearing on Today Today... Cloudy through mid morning, then gradual clearing, with a high near 43. Southwest wind 10 to 18 mph, with gusts as high as 31 mph.
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 35. Windy, with a west wind 22 to 30 mph, with gusts as high as 44 mph.
Sunny on Tuesday Tuesday... Sunny, with a temperature falling to around 33 by 5pm. Windy, with a west northwest wind 26 to 31 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph.
20% chance of freezing rain Tuesday Night Tuesday Night... A slight chance of rain or freezing rain before 7pm, then a slight chance of freezing rain between 7pm and 11pm. Mostly cloudy, with a low around 27. Southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
50% chance of rain & snow Wednesday Wednesday... A chance of rain before 2pm, then a chance of snow. Mostly cloudy, with a high near 44. Windy, with a south southwest wind 15 to 20 mph becoming west 25 to 30 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
40% chance of snow Wednesday Night Wednesday Night... A 40 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 3. Windy, with a north northwest wind 27 to 32 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 47 mph. New snow accumulation of less than a half inch possible.
Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 26. Northwest wind 6 to 10 mph becoming south in the afternoon.
30% chance of snow Thursday Night Thursday Night... A chance of snow after 11pm, mixing with rain after 2am. Mostly cloudy, with a low around 16. South wind 9 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
30% chance of rain & snow Friday Friday... A chance of rain and snow before 8am, then a chance of rain between 8am and 2pm, then a chance of snow after 2pm. Mostly cloudy, with a high near 41. West wind 16 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
30% chance of snow Friday Night Friday Night... A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 8. Northwest wind 10 to 13 mph, with gusts as high as 21 mph.
20% chance of snow Saturday Saturday... A 20 percent chance of snow. Mostly sunny, with a high near 25. West wind around 10 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 13.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 30.
Current Radar Image


Sun Almanac for Union, Montana
Sunrise: 07:41 AM
Sunset: 4:12 PM
Civil Sunrise:07:06 AM
Civil Sunset: 4:47 PM
Nautical Sunrise: 06:27 AM
Nautical Sunset: 5:26 PM
Astro Sunrise: 05:50 AM
Astro Sunset: 6:04 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.