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Etna, Montana Weather Forecast
Etna, Montana Weather
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Weather Forecast for Etna, Montana : Custer County
Issued: 2:13 am MST Dec 17, 2025 Latitude: 46.1875022 Longitude: -105.7811072 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Cloudy on Overnight 50% chance of rain & snow on Wednesday Increasing Clouds on Thursday 20% chance of rain & snow on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday Mostly Cloudy on Monday Partly Sunny on Tuesday
Low: 37°F High: 54°F High: 34°F High: 50°F High: 36°F High: 39°F High: 44°F High: 41°F
Low: 13°F Low: 30 °F Low: 19°F Low: 21°F Low: 24°F Low: 24°F  
Cloudy Rain & Snow Increasing Clouds Rain & Snow Mostly Sunny Mostly Sunny Mostly Cloudy Partly Sunny
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Current Conditions at
MILES CITY - (KMLS)
36°
Feels like 28°F
Clear
as of 1:53 AM MST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.64 in.
Flight Rule: VFR
Wind Data
9 MPH
150° Southeast
Cloud Level(s): Clear
Current Conditions at
BAKER - (KBHK)
34°
Clear
as of 1:51 AM MST
Rel. Humidity: 80%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.70 in.
Flight Rule: VFR
Wind Data
7 MPH
110° East
Cloud Level(s): Clear
Current Conditions at
GLENDIVE - (KGDV)
37°
Feels like 30°F
Clear
as of 1:56 AM MST
Rel. Humidity: 74%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.66 in.
Flight Rule: VFR
Wind Data
10 MPH
180° South
Cloud Level(s): Clear
Current Conditions at
JORDAN - (KJDN)
36°
Clear
as of 1:48 AM MST
Rel. Humidity: 80%
Dew Point: 30°F
Pressure: 29.58 in.
Wind Data
3 MPH
130° Southeast
Cloudy on Overnight Overnight... Partly cloudy, with a steady temperature around 37. South wind around 10 mph.

50% chance of rain & snow Wednesday Wednesday... A chance of rain showers before 2pm, then a slight chance of snow showers between 2pm and 3pm. Cloudy, then gradually becoming mostly sunny, with a high near 54. South wind 10 to 20 mph becoming west 24 to 34 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

30% chance of snow Wednesday Night Wednesday Night... A 30 percent chance of snow showers, mainly between 8pm and midnight. Mostly cloudy, with a low around 13. Wind chill values as low as -5. West wind 36 to 46 mph decreasing to 25 to 35 mph after midnight. Winds could gust as high as 65 mph. Little or no snow accumulation expected.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 34. Wind chill values as low as zero. Northwest wind 5 to 15 mph becoming south in the afternoon.

Cloudy on Thursday Night Thursday Night... Cloudy, with a temperature falling to near 30 by 10pm, then rising to around 38 during the remainder of the night. 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 50. South southwest wind around 11 mph becoming west northwest in the afternoon. Chance of precipitation is 20%.

60% chance of snow Friday Night Friday Night... Snow likely, mainly before 11pm. Mostly cloudy, with a low around 19. Northwest wind 5 to 7 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 36. 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 39. South southeast wind around 5 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 24. South southeast wind around 5 mph.

Mostly Cloudy on Monday Monday... Mostly cloudy, with a high near 44. Light and variable wind becoming west southwest around 6 mph in the afternoon.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 24. West wind 3 to 6 mph.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 41. Light and variable wind becoming southeast around 5 mph in the afternoon.

Current Radar Image


Sun Almanac for Etna, Montana
Sunrise: 07:41 AM
Sunset: 4:18 PM
Civil Sunrise:07:06 AM
Civil Sunset: 4:53 PM
Nautical Sunrise: 06:28 AM
Nautical Sunset: 5:31 PM
Astro Sunrise: 05:51 AM
Astro Sunset: 6:08 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.