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Roy, Montana Weather Forecast
Roy, Montana Weather
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Weather Forecast for Roy, Montana : Fergus County
Issued: 9:27 pm MST Dec 16, 2025 Latitude: 47.3313687 Longitude: -108.959881 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Cloudy on Tonight 40% chance of rain on Wednesday Increasing Clouds on Thursday 30% chance of snow on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday 10% chance of rain & snow on Monday Partly Sunny on Tuesday
Low: 41°F High: 49 °F High: 42°F High: 48°F High: 35°F High: 38°F High: 40°F High: 41°F
Low: 21°F Low: 34°F Low: 21°F Low: 24°F Low: 25°F Low: 25°F  
Mostly Cloudy Rain Increasing Clouds Snow Mostly Sunny Mostly Sunny Rain & Snow Partly Sunny
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Current Conditions at
LEWISTOWN - (KLWT)
43°
Feels like 36°F
Clear
as of 9:54 PM MST
Rel. Humidity: 56%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
10 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
HAVRE - (KHVR)
39°
Feels like 31°F
Clear
as of 9:53 PM MST
Rel. Humidity: 80%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.65 in.
Flight Rule: VFR
Wind Data
14 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
JORDAN - (KJDN)
36°
Mostly Clear
as of 9:48 PM MST
Rel. Humidity: 80%
Dew Point: 30°F
Pressure: 29.74 in.
Wind Data
5 MPH
160° South
Current Conditions at
GREAT FALLS - (KGTF)
45°
Feels like 36°F
Clear
as of 9:53 PM MST
Rel. Humidity: 56%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.67 in.
Flight Rule: VFR
Wind Data
18 MPH
230° Southwest
Cloud Level(s): Clear
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 41. Breezy, with a southwest wind 18 to 23 mph, with gusts as high as 32 mph.

40% chance of rain Wednesday Wednesday... A 40 percent chance of rain before 11am. Patchy blowing dust after 9am. Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 49 by 9am, then falling to around 35 during the remainder of the day. Very windy, with a west wind 32 to 37 mph increasing to 44 to 49 mph in the afternoon. Winds could gust as high as 70 mph.

Dust on Wednesday Night Wednesday Night... Areas of blowing dust before 11pm. Partly cloudy, with a low around 21. Very windy, with a west northwest wind 36 to 46 mph decreasing to 26 to 36 mph after midnight. Winds could gust as high as 70 mph.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 42. West wind 9 to 18 mph becoming south in the afternoon. Winds could gust as high as 29 mph.

Mostly Cloudy on Thursday Night Thursday Night... Mostly cloudy, with a low around 34. Breezy, with a south wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 34 mph.

30% chance of snow Friday Friday... A 30 percent chance of snow after 11am. Partly sunny, with a high near 48. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 38 mph. New snow accumulation of less than a half inch possible.

30% chance of snow Friday Night Friday Night... A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 21. West wind around 15 mph, with gusts as high as 24 mph. New snow accumulation of less than one inch possible.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 35. West wind 11 to 14 mph, with gusts as high as 22 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 24.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 38.

Mostly Cloudy on Sunday Night Sunday Night... Mostly cloudy, with a low around 25.

10% chance of rain & snow Monday Monday... A slight chance of rain and snow. Partly sunny, with a high near 40.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 25.

Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 41.

Current Radar Image


Sun Almanac for Roy, Montana
Sunrise: 07:58 AM
Sunset: 4:26 PM
Civil Sunrise:07:22 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 06:43 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 06:06 AM
Astro Sunset: 6:19 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.