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Big Stone Colony, Montana Weather Forecast
Big Stone Colony, Montana Weather
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Weather Forecast for Big Stone Colony, Montana : Cascade County
Issued: 9:27 pm MST Dec 16, 2025 Latitude: 47.3999579 Longitude: -111.2174679 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
10% chance of rain on Tonight 60% chance of rain on Wednesday Mostly Cloudy on Thursday 40% chance of rain & snow on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday 10% chance of rain & snow on Monday Partly Sunny on Tuesday
Low: 46°F High: 35 °F High: 49°F High: 49°F High: 40°F High: 41°F High: 45°F High: 43°F
Low: 28°F Low: 39°F Low: 24°F Low: 26°F Low: 29°F Low: 29°F  
Rain Rain Mostly Cloudy Rain & Snow Mostly Sunny Mostly Sunny Rain & Snow Partly Sunny
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Current Conditions at
GREAT FALLS - (KGTF)
45°
Feels like 36°F
Clear
as of 9:53 PM MST
Rel. Humidity: 56%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.67 in.
Flight Rule: VFR
Wind Data
18 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
HELENA - (KHLN)
52°
Clear
as of 9:53 PM MST
Rel. Humidity: 34%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 24 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
LEWISTOWN - (KLWT)
43°
Feels like 36°F
Clear
as of 9:54 PM MST
Rel. Humidity: 56%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
10 MPH
230° Southwest
Cloud Level(s): Clear
10% chance of rain Tonight Tonight... A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 46. Windy, with a south southwest wind 28 to 33 mph increasing to 35 to 40 mph after midnight. Winds could gust as high as 55 mph.

60% chance of rain Wednesday Wednesday... Rain likely, mainly before 10am. Patchy blowing dust. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 35 by 5pm. Very windy, with a west wind 44 to 55 mph, with gusts as high as 70 mph. Chance of precipitation is 60%.

Dust on Wednesday Night Wednesday Night... Patchy blowing dust before 8pm. Partly cloudy, with a low around 28. Windy, with a west wind 33 to 38 mph decreasing to 25 to 30 mph after midnight. Winds could gust as high as 55 mph.

Mostly Cloudy on Thursday Thursday... Mostly cloudy, with a high near 49. Breezy, with a south southwest wind 16 to 24 mph, with gusts as high as 33 mph.

30% chance of rain & snow Thursday Night Thursday Night... A slight chance of rain and snow before 11pm, then a chance of rain. Mostly cloudy, with a low around 39. Windy, with a southwest wind 16 to 26 mph increasing to 27 to 37 mph after midnight. Winds could gust as high as 50 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

40% chance of rain & snow Friday Friday... A chance of rain and snow before 8am, then a chance of snow. Partly sunny, with a high near 49. Windy, with a west wind 32 to 37 mph decreasing to 24 to 29 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

30% chance of snow Friday Night Friday Night... A 30 percent chance of snow, mainly before 11pm. Partly cloudy, with a low around 24. West wind 15 to 17 mph, with gusts as high as 25 mph. Little or no snow accumulation expected.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 40. West southwest wind 17 to 21 mph, with gusts as high as 31 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 26.

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

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

10% chance of rain & snow Monday Monday... A slight chance of rain and snow. Partly sunny, with a high near 45.

10% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 29.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 43.

Current Radar Image


Sun Almanac for Big Stone Colony, Montana
Sunrise: 08:07 AM
Sunset: 4:35 PM
Civil Sunrise:07:32 AM
Civil Sunset: 5:11 PM
Nautical Sunrise: 06:52 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 06:15 AM
Astro Sunset: 6:27 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.