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Porcupine, Montana Weather Forecast
Porcupine, Montana Weather
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Weather Forecast for Porcupine, Montana : Rosebud County
Issued: 4:09 pm MST Dec 17, 2025 Latitude: 46.2897172 Longitude: -106.6603121 View on Google Maps

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Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Mostly Clear on Tonight Increasing Clouds on Thursday 40% chance of rain & snow on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday 20% chance of rain & snow on Monday Partly Sunny on Tuesday Partly Sunny on Wednesday
Low: 16°F High: 34°F High: 49°F High: 40°F High: 41°F High: 44°F High: 40°F High: 42°F
Low: 30 °F Low: 22°F Low: 23°F Low: 27°F Low: 23°F Low: 24°F  
Mostly Clear Increasing Clouds Rain & Snow Mostly Sunny Mostly Sunny Rain & Snow Partly Sunny Partly Sunny
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Current Conditions at
MILES CITY - (KMLS)
36°
Feels like 20°F
Cloudy
Light Snow
as of 8:53 PM MST
Rel. Humidity: 69%
Dew Point: 27°F
Visibility: 9 Miles
Pressure: 29.40 in.
Flight Rule: VFR
Wind Data
45 MPH
Gust: 75 MPH
280° West
Cloud Level(s): Few at 2800ft, Scattered at 5500ft, Solid Overcast at 7000ft
Current Conditions at
JORDAN - (KJDN)
18°
Feels like -7°F
Clear
as of 8:48 PM MST
Rel. Humidity: 52%
Dew Point: 3°F
Pressure: 29.46 in.
Wind Data
58 MPH
Gust: 77 MPH
310° Northwest
Current Conditions at
BILLINGS - (KBIL)
39°
Feels like 27°F
Mostly Cloudy
as of 8:53 PM MST
Rel. Humidity: 29%
Dew Point: 10°F
Visibility: 10 Miles
Pressure: 29.65 in.
Flight Rule: VFR
Wind Data
31 MPH
Gust: 52 MPH
280° West
Cloud Level(s): Broken at 20000ft
Current Conditions at
GLENDIVE - (KGDV)
14°
Feels like -12°F
Cloudy
Snow Freezing Fog
as of 9:44 PM MST
Rel. Humidity: 85%
Dew Point: 10°F
Visibility: 1/2 Miles
Pressure: 29.30 in.
Flight Rule: IFR
Wind Data
56 MPH
Gust: 75 MPH
300° Northwest
Cloud Level(s): Scattered at 800ft, Broken at 1100ft, Solid Overcast at 2400ft
Mostly Clear on Tonight Tonight... Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Northwest wind 35 to 45 mph decreasing to 23 to 33 mph after midnight. Winds could gust as high as 60 mph.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 34. West northwest wind 5 to 10 mph becoming south in the afternoon.

20% chance of rain & snow Thursday Night Thursday Night... A slight chance of rain and snow showers after 11pm. Cloudy, with a temperature falling to near 30 by 10pm, then rising to around 41 during the remainder of the night. South southeast wind 9 to 13 mph. Chance of precipitation is 20%.

40% chance of rain & snow Friday Friday... A chance of rain showers after 11am, mixing with snow after 2pm. Mostly cloudy, with a high near 49. Southwest wind 11 to 15 mph becoming west northwest in the afternoon. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

50% chance of snow Friday Night Friday Night... A 50 percent chance of snow showers, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 22. Northwest wind around 7 mph. New snow accumulation of less than a half inch possible.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 40. West wind 6 to 8 mph.

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

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 41. Southeast wind 3 to 5 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 27. Southeast wind around 5 mph becoming calm in the evening.

20% chance of rain & snow Monday Monday... A slight chance of rain and snow showers after 11am. Mostly cloudy, with a high near 44. Light and variable wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 20%.

20% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow showers. Mostly cloudy, with a low around 23. West northwest wind around 6 mph becoming light and variable after midnight. Chance of precipitation is 20%.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 40. Southeast wind 3 to 5 mph.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 24. East wind around 5 mph becoming calm in the evening.

Partly Sunny on Wednesday Wednesday... Partly sunny, with a high near 42. Calm wind becoming west around 5 mph in the afternoon.

Current Radar Image


Sun Almanac for Porcupine, Montana
Sunrise: 07:45 AM
Sunset: 4:22 PM
Civil Sunrise:07:10 AM
Civil Sunset: 4:57 PM
Nautical Sunrise: 06:32 AM
Nautical Sunset: 5:35 PM
Astro Sunrise: 05:56 AM
Astro Sunset: 6:11 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.