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Oneill, Montana Weather Forecast
Oneill, Montana Weather
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Weather Forecast for Oneill, Montana : Custer County
Issued: 4:09 am MST Dec 17, 2025 Latitude: 46.1486124 Longitude: -105.1505314 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
70% chance of rain & snow on Today 40% chance of snow on Tonight Mostly Sunny on Thursday 20% chance of rain & snow on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Partly Sunny on Monday Partly Sunny on Tuesday
High: 52°F Low: 10°F High: 32°F High: 48°F High: 35°F High: 38°F High: 43°F High: 40°F
Low: 35 °F Low: 19°F Low: 21°F Low: 25°F Low: 24°F  
Rain & Snow Snow Mostly Sunny Rain & Snow Mostly Sunny Mostly Sunny Partly Sunny Partly Sunny
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Current Conditions at
MILES CITY - (KMLS)
36°
Feels like 27°F
Clear
as of 4:53 AM MST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.49 in.
Flight Rule: VFR
Wind Data
12 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
BAKER - (KBHK)
39°
Feels like 32°F
Clear
as of 4:51 AM MST
Rel. Humidity: 69%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.56 in.
Flight Rule: VFR
Wind Data
10 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
GLENDIVE - (KGDV)
34°
Clear
as of 4:56 AM MST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.51 in.
Flight Rule: VFR
Wind Data
8 MPH
190° South
Cloud Level(s): Clear
Current Conditions at
JORDAN - (KJDN)
39°
Feels like 33°F
Clear
as of 4:48 AM MST
Rel. Humidity: 69%
Dew Point: 30°F
Pressure: 29.41 in.
Wind Data
9 MPH
210° Southwest
70% chance of rain & snow Today Today... Rain showers likely, possibly mixing with snow after 2pm, then gradually ending. Cloudy, then gradually becoming mostly sunny, with a high near 52. South southeast wind 13 to 18 mph becoming west 24 to 29 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

40% chance of snow Tonight Tonight... A 40 percent chance of snow showers, mainly after 9pm. Increasing clouds, with a low around 10. Wind chill values as low as -10. West wind 41 to 46 mph decreasing to 29 to 34 mph after midnight. Winds could gust as high as 65 mph. New snow accumulation of less than a half inch possible.

Mostly Sunny on Thursday Thursday... Mostly sunny, with a high near 32. Wind chill values as low as -5. Northwest wind 15 to 20 mph becoming west 5 to 10 mph in the afternoon.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a temperature rising to around 35 by 5am. South southeast wind 6 to 10 mph.

20% chance of rain & snow Friday Friday... A slight chance of rain after 11am, mixing with snow after 2pm. Mostly cloudy, with a high near 48. South wind 9 to 11 mph becoming west northwest in the afternoon. Chance of precipitation is 20%.

50% chance of snow Friday Night Friday Night... A 50 percent chance of snow. Cloudy, then gradually becoming partly cloudy, with a low around 19. West northwest wind 5 to 7 mph. New snow accumulation of less than a half inch possible.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 35. West wind 3 to 6 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 21. Southwest wind around 6 mph.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 38. South southeast wind around 6 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 25. South southeast wind around 6 mph.

Partly Sunny on Monday Monday... Partly sunny, with a high near 43. South wind 5 to 7 mph becoming west in the afternoon.

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

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 40. Calm wind becoming south southeast around 5 mph in the afternoon.

Current Radar Image


Sun Almanac for Oneill, Montana
Sunrise: 07:38 AM
Sunset: 4:16 PM
Civil Sunrise:07:03 AM
Civil Sunset: 4:51 PM
Nautical Sunrise: 06:25 AM
Nautical Sunset: 5:29 PM
Astro Sunrise: 05:49 AM
Astro Sunset: 6:05 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.