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Chestnut, Montana Weather Forecast
Chestnut, Montana Weather
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Click for High Wind Warning for Chestnut, Montana
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Weather Forecast for Chestnut, Montana : Gallatin County
Issued: 9:27 pm MST Dec 16, 2025 Latitude: 45.6477097 Longitude: -110.8888309 View on Google Maps

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Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
20% chance of rain on Overnight 90% chance of rain & snow on Wednesday 50% chance of snow on Thursday 80% chance of rain & snow on Friday 20% chance of snow on Saturday 10% chance of snow on Sunday 20% chance of rain & snow on Monday 10% chance of rain & snow on Tuesday
Low: 36°F High: 44 °F High: 38°F High: 45°F High: 34°F High: 38°F High: 45°F High: 46°F
Low: 21°F Low: 32°F Low: 24°F Low: 20°F Low: 30°F Low: 32°F  
Rain Rain & Snow Snow Rain & Snow Snow Snow Rain & Snow Rain & Snow
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Current Conditions at
BOZEMAN - (KBZN)
46°
Clear
as of 11:56 PM MST
Rel. Humidity: 36%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.76 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
LIVINGSTON - (KLVM)
48°
Feels like 38°F
Clear
as of 11:53 PM MST
Rel. Humidity: 42%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.73 in.
Flight Rule: VFR
Wind Data
36 MPH
Gust: 47 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
YELLOWSTONE - (KP60)
34°
Partly Cloudy
as of 11:56 PM MST
Rel. Humidity: 69%
Dew Point: 25°F
Pressure: 29.97 in.
Wind Data
7 MPH
Gust: 20 MPH
Current Conditions at
HELENA - (KHLN)
48°
Feels like 43°F
Clear
as of 11:53 PM MST
Rel. Humidity: 39%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.64 in.
Flight Rule: VFR
Wind Data
12 MPH
150° Southeast
Cloud Level(s): Clear
20% chance of rain Overnight Overnight... A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 36. Breezy, with a south southwest wind 21 to 24 mph, with gusts as high as 41 mph.
90% chance of rain & snow Wednesday Wednesday... Rain, possibly mixed with snow before 11am, then a chance of snow between 11am and 1pm. Temperature rising to near 44 by 8am, then falling to around 28 during the remainder of the day. Windy, with a west wind 26 to 31 mph increasing to 32 to 37 mph in the afternoon. Winds could gust as high as 60 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 21. Windy, with a west wind 28 to 33 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 60 mph.
50% chance of snow Thursday Thursday... A 50 percent chance of snow after 11am. Mostly cloudy, with a high near 38. South southwest wind 9 to 14 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
60% chance of rain & snow Thursday Night Thursday Night... Rain and snow likely before 11pm, then a chance of rain between 11pm and 5am, then a chance of rain and snow after 5am. Cloudy, with a low around 32. South southwest wind 16 to 18 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
80% chance of rain & snow Friday Friday... Rain and snow likely before 11am, then snow between 11am and 2pm, then rain and snow after 2pm. High near 45. Southwest wind 18 to 20 mph, with gusts as high as 37 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
70% chance of snow Friday Night Friday Night... Snow likely, mainly before 11pm. Mostly cloudy, with a low around 24. West wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
20% chance of snow Saturday Saturday... A chance of snow, mainly before 11am. Mostly sunny, with a high near 34. West southwest wind 10 to 14 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 20.
10% chance of snow Sunday Sunday... A slight chance of snow. Partly sunny, with a high near 38.
20% chance of rain & snow Sunday Night Sunday Night... 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. Mostly cloudy, 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 32.
10% chance of rain & snow Tuesday Tuesday... A slight chance of rain and snow. Mostly cloudy, with a high near 46.
Current Radar Image


Sun Almanac for Chestnut, Montana
Sunrise: 07:59 AM
Sunset: 4:41 PM
Civil Sunrise:07:25 AM
Civil Sunset: 5:15 PM
Nautical Sunrise: 06:47 AM
Nautical Sunset: 5:53 PM
Astro Sunrise: 06:11 AM
Astro Sunset: 6:29 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.