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Knox, Montana Weather Forecast
Knox, Montana Weather
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Weather Forecast for Knox, Montana : Yellowstone County
Issued: 1:08 am MST Dec 15, 2025 Latitude: 45.9438491 Longitude: -108.1981783 View on Google Maps

MouseOver for Detail Forecast
Overnight Monday Tuesday Wednesday Thursday Friday Saturday Sunday
Mostly Clear on Overnight Increasing Clouds on Monday Mostly Sunny on Tuesday 60% chance of rain & snow on Wednesday Partly Sunny on Thursday 40% chance of rain & snow on Friday 20% chance of snow on Saturday 20% chance of snow on Sunday
Low: 31°F High: 46°F High: 47°F High: 48°F High: 38°F High: 50°F High: 39°F High: 38°F
Low: 36°F Low: 32°F Low: 17°F Low: 31 °F Low: 23°F Low: 23°F  
Mostly Clear Increasing Clouds Mostly Sunny Rain & Snow Partly Sunny Rain & Snow Snow Snow
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Current Conditions at
BILLINGS - (KBIL)
45°
Feels like 36°F
Partly Cloudy
as of 12:53 AM MST
Rel. Humidity: 39%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
20 MPH
250° West
Cloud Level(s): Scattered at 23000ft
Current Conditions at
LEWISTOWN - (KLWT)
43°
Feels like 34°F
Clear
as of 12:54 AM MST
Rel. Humidity: 52%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 30.01 in.
Flight Rule: VFR
Wind Data
17 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
SOUTH BIG HORN - (KGEY)
23°
Clear
as of 12:53 AM MST
Rel. Humidity: 85%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 30.14 in.
Flight Rule: VFR
Wind Data
3 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
CODY - (KCOD)
52°
Clear
as of 12:56 AM MST
Rel. Humidity: 13%
Dew Point: 3°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 20 MPH
270° West
Cloud Level(s): Clear
Mostly Clear on Overnight Overnight... Mostly clear, with a low around 31. West southwest wind around 14 mph.

Increasing Clouds on Monday Monday... Increasing clouds, with a high near 46. Southwest wind 11 to 13 mph.

Clearing on Monday Night Monday Night... Cloudy during the early evening, then gradual clearing, with a low around 36. Southwest wind 15 to 17 mph.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 47. West wind 9 to 14 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 32. Southwest wind 7 to 10 mph.

60% chance of rain & snow Wednesday Wednesday... A chance of rain before 11am, then rain and snow likely. Mostly cloudy, then gradually becoming sunny, with a high near 48. South southwest wind 13 to 18 mph becoming west 21 to 26 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 17. Northwest wind 20 to 30 mph decreasing to 8 to 18 mph after midnight. Winds could gust as high as 41 mph.

Partly Sunny on Thursday Thursday... Partly sunny, with a high near 38. Southeast wind around 6 mph becoming light and variable.

20% chance of snow Thursday Night Thursday Night... A slight chance of snow, mixing with rain after 8pm, then gradually ending. Mostly cloudy, with a temperature falling to near 31 by 10pm, then rising to around 39 during the remainder of the night. Southwest wind 5 to 8 mph. Chance of precipitation is 20%.

40% chance of rain & snow Friday Friday... A chance of rain before 8am, then a chance of rain and snow. Mostly cloudy, with a high near 50. West southwest wind around 10 mph. Chance of precipitation is 40%.

40% chance of rain & snow Friday Night Friday Night... A chance of rain and snow. Mostly cloudy, with a low around 23. West northwest wind around 8 mph. Chance of precipitation is 40%.

20% chance of snow Saturday Saturday... A 20 percent chance of snow. Mostly sunny, with a high near 39. West wind around 7 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 23. West southwest wind around 6 mph.

20% chance of snow Sunday Sunday... A 20 percent chance of snow. Partly sunny, with a high near 38. West southwest wind around 6 mph.

Current Radar Image


Sun Almanac for Knox, Montana
Sunrise: 07:48 AM
Sunset: 4:28 PM
Civil Sunrise:07:14 AM
Civil Sunset: 5:03 PM
Nautical Sunrise: 06:36 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 05:59 AM
Astro Sunset: 6:17 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.