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Greenough, Montana Weather Forecast
Greenough, Montana Weather
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Click for High Wind Warning for Greenough, Montana
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Weather Forecast for Greenough, Montana : Missoula County
Issued: 1:01 am MST Dec 17, 2025 Latitude: 46.9165991 Longitude: -113.4367468 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
70% chance of snow on Today 20% chance of snow on Tonight 80% chance of snow on Thursday 90% chance of rain & snow on Friday 50% chance of snow on Saturday 20% chance of rain & snow on Sunday Rain and Snow on Monday 10% chance of snow on Tuesday
High: 43°F Low: 23°F High: 39°F High: 40°F High: 33°F High: 36°F High: 38°F High: 35°F
Low: 28°F Low: 20°F Low: 19°F Low: 20°F Low: 18°F  
Snow Snow Snow Rain & Snow Snow Rain & Snow Rain and Snow 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
70% chance of snow Today Today... Snow likely, mainly before noon. Mostly cloudy, with a high near 43. Breezy, with a west wind around 24 mph, with gusts as high as 55 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than a half inch possible.
20% chance of snow Tonight Tonight... A 20 percent chance of snow before 10pm. Mostly cloudy, with a low around 23. West wind 12 to 17 mph becoming light west southwest after midnight. Winds could gust as high as 30 mph.
80% chance of snow Thursday Thursday... Snow, mainly after 11am. Patchy fog between 8am and 9am. High near 39. Calm wind. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
100% chance of rain & snow Thursday Night Thursday Night... Rain and snow, becoming all rain after 8pm. Snow level 4300 feet rising to 5700 feet. Low around 28. Calm wind becoming southwest around 6 mph after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
90% chance of rain & snow Friday Friday... Rain and snow, becoming all snow after 11am. High near 40. West wind 6 to 8 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
60% chance of snow Friday Night Friday Night... Snow likely, mainly before 11pm. Mostly cloudy, with a low around 20. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
50% chance of snow Saturday Saturday... A 50 percent chance of snow. Partly sunny, with a high near 33. New snow accumulation of less than a half inch possible.
10% chance of snow Saturday Night Saturday Night... A slight chance of snow before 11pm. Mostly cloudy, with a low around 19.
20% chance of rain & snow Sunday Sunday... A slight chance of snow between 11am and 5pm, then a chance of rain and snow. Partly sunny, with a high near 36.
20% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow before 8pm, then a chance of snow. Snow level 4000 feet rising to 4600 feet after midnight. Mostly cloudy, with a low around 20.
Rain and Snow on Monday Monday... Rain and snow likely. Snow level 5200 feet lowering to 4500 feet. Mostly cloudy, with a high near 38.
20% chance of rain & snow Monday Night Monday Night... A chance of rain and snow. Mostly cloudy, with a low around 18.
10% chance of snow Tuesday Tuesday... A slight chance of snow. Partly sunny, with a high near 35.
Sun Almanac for Greenough, Montana
Sunrise: 08:14 AM
Sunset: 4:46 PM
Civil Sunrise:07:39 AM
Civil Sunset: 5:21 PM
Nautical Sunrise: 07:00 AM
Nautical Sunset: 6:00 PM
Astro Sunrise: 06:23 AM
Astro Sunset: 6:37 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.