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Nelson, Montana Weather Forecast
Nelson, Montana Weather
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Weather Forecast for Nelson, Montana : Lewis and Clark County
Issued: 4:03 am MST Dec 17, 2025 Latitude: 46.8168843 Longitude: -111.8091528 View on Google Maps

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Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
90% chance of rain & snow on Today Mostly Cloudy on Tonight 30% chance of snow on Thursday 70% chance of rain & snow on Friday 20% chance of snow on Saturday Mostly Sunny on Sunday 20% chance of rain & snow on Monday 10% chance of rain & snow on Tuesday
High: 31 °F Low: 28°F High: 40°F High: 44°F High: 37°F High: 39°F High: 42°F High: 40°F
Low: 36°F Low: 26°F Low: 25°F Low: 30°F Low: 27°F  
Rain & Snow Mostly Cloudy Snow Rain & Snow Snow Mostly Sunny Rain & Snow Rain & Snow
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Current Conditions at
HELENA - (KHLN)
52°
Mostly Clear
as of 5:53 AM MST
Rel. Humidity: 43%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.29 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 36 MPH
200° South
Cloud Level(s): Few at 12000ft
Current Conditions at
GREAT FALLS - (KGTF)
54°
Mostly Clear
as of 5:53 AM MST
Rel. Humidity: 40%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.16 in.
Flight Rule: VFR
Wind Data
35 MPH
Gust: 48 MPH
220° Southwest
Cloud Level(s): Few at 12000ft
Current Conditions at
BUTTE - (KBTM)
41°
Feels like 31°F
Mostly Clear
as of 5:53 AM MST
Rel. Humidity: 75%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.41 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 33 MPH
190° South
Cloud Level(s): Few at 3900ft
90% chance of rain & snow Today Today... Rain and snow before noon, then a slight chance of snow after 2pm. Patchy blowing dust after 10am. Temperature falling to around 31 by 5pm. Windy, with a south wind 18 to 23 mph becoming west 28 to 33 mph in the morning. Winds could gust as high as 50 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 28. Breezy, with a west wind 23 to 28 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 44 mph.

30% chance of snow Thursday Thursday... A 30 percent chance of snow, mainly between 11am and 5pm. Mostly cloudy, with a high near 40. South wind 8 to 14 mph, with gusts as high as 24 mph. Little or no snow accumulation expected.

70% chance of rain & snow Thursday Night Thursday Night... Rain and snow likely, becoming all rain after 11pm. Mostly cloudy, with a low around 36. South wind 15 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

70% chance of rain & snow Friday Friday... Rain and snow likely, becoming all snow after 8am. Mostly cloudy, with a high near 44. West wind around 14 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. 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 26. West wind 9 to 11 mph, with gusts as high as 21 mph. New snow accumulation of less than a half inch possible.

20% chance of snow Saturday Saturday... A 20 percent chance of snow. Mostly sunny, with a high near 37. West southwest wind 8 to 15 mph, with gusts as high as 24 mph.

10% chance of snow Saturday Night Saturday Night... A slight chance of snow. Partly cloudy, with a low around 25. South wind 7 to 11 mph, with gusts as high as 22 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 39.

20% chance of rain & snow Sunday Night Sunday Night... A chance of snow before 2am, 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 42.

10% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 27.

10% chance of rain & snow Tuesday Tuesday... A slight chance of rain and snow. Partly sunny, with a high near 40.

Current Radar Image


Sun Almanac for Nelson, Montana
Sunrise: 08:07 AM
Sunset: 4:40 PM
Civil Sunrise:07:32 AM
Civil Sunset: 5:15 PM
Nautical Sunrise: 06:53 AM
Nautical Sunset: 5:54 PM
Astro Sunrise: 06:16 AM
Astro Sunset: 6:31 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.