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Custer, Montana Weather Forecast
Custer, Montana Weather
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Click for High Wind Warning for Custer, Montana
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Weather Forecast for Custer, Montana : Yellowstone County
Issued: 4:09 am MST Dec 17, 2025 Latitude: 46.1291529 Longitude: -107.5550754 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Thursday Friday Saturday Sunday Monday Tuesday
70% chance of rain on Today Cloudy on Tonight Increasing Clouds on Thursday 80% chance of rain & snow on Friday 20% chance of snow on Saturday Partly Sunny on Sunday 20% chance of rain & snow on Monday Partly Sunny on Tuesday
High: 54°F Low: 20°F High: 38°F High: 53°F High: 38°F High: 38°F High: 41°F High: 40°F
Low: 32 °F Low: 22°F Low: 21°F Low: 24°F Low: 24°F  
Rain Cloudy Increasing Clouds Rain & Snow Snow Partly Sunny Rain & Snow Partly Sunny
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Current Conditions at
BILLINGS - (KBIL)
50°
Feels like 44°F
Mostly Cloudy
as of 5:53 AM MST
Rel. Humidity: 43%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.41 in.
Flight Rule: VFR
Wind Data
17 MPH
Gust: 30 MPH
240° Southwest
Cloud Level(s): Few at 10000ft, Broken at 20000ft
Current Conditions at
MILES CITY - (KMLS)
36°
Feels like 26°F
Clear
as of 5:53 AM MST
Rel. Humidity: 80%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.43 in.
Flight Rule: VFR
Wind Data
15 MPH
160° South
Cloud Level(s): Clear
Current Conditions at
JORDAN - (KJDN)
39°
Feels like 33°F
Clear
as of 5:48 AM MST
Rel. Humidity: 69%
Dew Point: 30°F
Pressure: 29.33 in.
Wind Data
9 MPH
210° Southwest
Current Conditions at
LEWISTOWN - (KLWT)
48°
Clear
as of 5:54 AM MST
Rel. Humidity: 36%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.28 in.
Flight Rule: VFR
Wind Data
3 MPH
210° Southwest
Cloud Level(s): Clear
70% chance of rain Today Today... Showers likely, mainly before 1pm. Cloudy through mid morning, then gradual clearing, with a high near 54. South southwest wind 11 to 21 mph becoming west 33 to 43 mph. Winds could gust as high as 60 mph. Chance of precipitation is 70%.
Cloudy on Tonight Tonight... Partly cloudy, with a low around 20. West wind 30 to 40 mph decreasing to 20 to 30 mph after midnight. Winds could gust as high as 55 mph.
Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 38. South wind 5 to 8 mph.
Cloudy on Thursday Night Thursday Night... Cloudy, with a temperature falling to near 32 by 11pm, then rising to around 40 during the remainder of the night. South wind 6 to 11 mph.
80% chance of rain & snow Friday Friday... A chance of rain before 2pm, then rain, possibly mixed with snow. High near 53. Southwest wind 9 to 14 mph becoming west northwest in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
80% chance of rain & snow Friday Night Friday Night... Rain and snow, becoming all snow after 8pm. Low around 22. West northwest wind 3 to 6 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
20% chance of snow Saturday Saturday... A 20 percent chance of snow before 11am. Partly sunny, with a high near 38. West wind 3 to 6 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 21. Southwest wind 3 to 5 mph.
Partly Sunny on Sunday Sunday... Partly sunny, with a high near 38. Light south southwest wind.
Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 24. Calm wind.
20% chance of rain & snow Monday Monday... A slight chance of rain and snow. Mostly cloudy, with a high near 41. Calm wind becoming west northwest around 6 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. Mostly cloudy, with a low around 24. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 40. Light south wind.
Current Radar Image


Sun Almanac for Custer, Montana
Sunrise: 07:48 AM
Sunset: 4:26 PM
Civil Sunrise:07:13 AM
Civil Sunset: 5:00 PM
Nautical Sunrise: 06:35 AM
Nautical Sunset: 5:38 PM
Astro Sunrise: 05:58 AM
Astro Sunset: 6:15 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.