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Acton, Montana Weather Forecast
Acton, Montana Weather
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Weather Forecast for Acton, Montana : Yellowstone County
Issued: 4:09 pm MST Dec 17, 2025 Latitude: 45.9305083 Longitude: -108.6806978 View on Google Maps

MouseOver for Detail Forecast
Tonight Thursday Friday Saturday Sunday Monday Tuesday Wednesday
Mostly Clear on Tonight Increasing Clouds on Thursday 50% chance of rain & snow on Friday Sunny on Saturday Partly Sunny on Sunday 30% chance of rain & snow on Monday Partly Sunny on Tuesday 10% chance of rain & snow on Wednesday
Low: 26°F High: 38°F High: 52 °F High: 40°F High: 40°F High: 46°F High: 41°F High: 44°F
Low: 33 °F Low: 25°F Low: 23°F Low: 33°F Low: 26°F Low: 26°F  
Mostly Clear Increasing Clouds Rain & Snow Sunny Partly Sunny Rain & Snow Partly Sunny Rain & Snow
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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
LEWISTOWN - (KLWT)
25°
Feels like 11°F
Cloudy
as of 8:54 PM MST
Rel. Humidity: 79%
Dew Point: 19°F
Visibility: 10 Miles
Pressure: 29.68 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 36 MPH
310° Northwest
Cloud Level(s): Solid Overcast at 7500ft
Current Conditions at
LIVINGSTON - (KLVM)
Clear
as of 8:53 PM MST
Pressure: 29.79 in.
Wind Data
Calm
Current Conditions at
CODY - (KCOD)
36°
Feels like 24°F
Clear
as of 8:56 PM MST
Rel. Humidity: 21%
Dew Point: -0°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
20 MPH
Gust: 36 MPH
300° Northwest
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 26. West northwest wind 35 to 40 mph decreasing to 26 to 31 mph after midnight. Winds could gust as high as 55 mph.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 38. West wind 11 to 16 mph becoming south southwest in the afternoon.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a temperature falling to near 33 by 10pm, then rising to around 43 during the remainder of the night. Southwest wind 16 to 21 mph increasing to 23 to 28 mph after midnight. Winds could gust as high as 39 mph.

50% chance of rain & snow Friday Friday... A chance of rain and snow showers after 11am. Partly sunny, with a temperature rising to near 52 by 11am, then falling to around 39 during the remainder of the day. Southwest wind 24 to 29 mph decreasing to 18 to 23 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

60% chance of snow Friday Night Friday Night... Snow showers likely, mainly before 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 25. West northwest wind around 14 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Sunny on Saturday Saturday... Sunny, with a high near 40. West wind 14 to 16 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 23. Southwest wind around 11 mph.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 40. South southwest wind 6 to 10 mph.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a steady temperature around 33. Southwest wind 5 to 9 mph.

30% chance of rain & snow Monday Monday... A chance of rain and snow showers. Mostly cloudy, with a high near 46. West wind around 10 mph. Chance of precipitation is 30%.

20% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow showers. Mostly cloudy, with a low around 26. West southwest wind around 8 mph. Chance of precipitation is 20%.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 41. West southwest wind 5 to 7 mph becoming east in the afternoon.

Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 26. North northeast wind around 6 mph becoming west southwest after midnight.

10% chance of rain & snow Wednesday Wednesday... A slight chance of rain and snow showers. Partly sunny, with a high near 44. West southwest wind around 8 mph. Chance of precipitation is 10%.

Current Radar Image


Sun Almanac for Acton, Montana
Sunrise: 07:52 AM
Sunset: 4:31 PM
Civil Sunrise:07:17 AM
Civil Sunset: 5:06 PM
Nautical Sunrise: 06:39 AM
Nautical Sunset: 5:44 PM
Astro Sunrise: 06:03 AM
Astro Sunset: 6:20 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.