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Mann, Montana Weather Forecast
Mann, Montana Weather
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Weather Forecast for Mann, Montana : Judith Basin County
Issued: 4:03 am MST Dec 17, 2025 Latitude: 47.2635753 Longitude: -110.7252192 View on Google Maps

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Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
70% chance of rain & snow on Today Dust on Tonight 20% chance of snow on Thursday 50% chance of rain & snow on Friday 10% chance of snow on Saturday Mostly Sunny on Sunday 20% chance of rain & snow on Monday 10% chance of rain & snow on Tuesday
High: 49 °F Low: 31°F High: 45°F High: 48°F High: 38°F High: 41°F High: 43°F High: 44°F
Low: 33°F Low: 23°F Low: 25°F Low: 29°F Low: 26°F  
Rain & Snow Dust Snow Rain & Snow Snow Mostly Sunny Rain & Snow Rain & Snow
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Current Conditions at
GREAT FALLS - (KGTF)
52°
Clear
as of 6:53 AM MST
Rel. Humidity: 43%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.12 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 24 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
LEWISTOWN - (KLWT)
50°
Feels like 43°F
Mostly Clear
as of 6:54 AM MST
Rel. Humidity: 39%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.23 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 32 MPH
220° Southwest
Cloud Level(s): Few at 12000ft
Current Conditions at
HELENA - (KHLN)
50°
Feels like 42°F
Mostly Cloudy
as of 6:53 AM MST
Rel. Humidity: 53%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.21 in.
Flight Rule: VFR
Wind Data
26 MPH
Gust: 43 MPH
190° South
Cloud Level(s): Scattered at 6500ft, Broken at 9000ft
70% chance of rain & snow Today Today... Rain and snow likely before noon, then a slight chance of snow after 3pm. Patchy blowing dust. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 49 by 10am, then falling to around 33 during the remainder of the day. Very windy, with a west wind 30 to 35 mph increasing to 42 to 47 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.

Dust on Tonight Tonight... Patchy blowing dust before 9pm. Partly cloudy, with a steady temperature around 31. Windy, with a west wind 34 to 39 mph decreasing to 20 to 25 mph after midnight. Winds could gust as high as 55 mph.

20% chance of snow Thursday Thursday... A 20 percent chance of snow after 11am. Partly sunny, with a high near 45. Southwest wind around 16 mph, with gusts as high as 25 mph.

40% chance of rain & snow Thursday Night Thursday Night... A slight chance of snow before 8pm, then a slight chance of rain and snow between 8pm and 11pm, then a chance of rain after 11pm. Mostly cloudy, with a low around 33. Windy, with a south southwest wind 14 to 19 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

50% chance of rain & snow Friday Friday... A chance of rain and snow before 8am, then a chance of snow. Mostly cloudy, with a high near 48. Windy, with a west wind 22 to 31 mph, with gusts as high as 44 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

40% chance of snow Friday Night Friday Night... A 40 percent chance of snow. Mostly cloudy, with a low around 23. West southwest wind around 15 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.

10% chance of snow Saturday Saturday... A 10 percent chance of snow before 11am. Mostly sunny, with a high near 38. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 31 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 25. Southwest wind 15 to 18 mph, with gusts as high as 28 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 41.

20% chance of snow Sunday Night Sunday Night... A chance of snow, mainly after 11pm. Mostly cloudy, with a low around 29.

20% chance of rain & snow Monday Monday... A chance of rain and snow. Partly sunny, with a high near 43.

10% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow. Partly cloudy, with a low around 26.

10% chance of rain & snow Tuesday Tuesday... A slight chance of rain and snow. Partly sunny, with a high near 44.

Current Radar Image


Sun Almanac for Mann, Montana
Sunrise: 08:05 AM
Sunset: 4:34 PM
Civil Sunrise:07:29 AM
Civil Sunset: 5:09 PM
Nautical Sunrise: 06:50 AM
Nautical Sunset: 5:48 PM
Astro Sunrise: 06:13 AM
Astro Sunset: 6:26 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.