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Chinook, Montana Weather Forecast
Chinook, Montana Weather
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Weather Forecast for Chinook, Montana : Blaine County
Issued: 4:03 am MST Dec 17, 2025 Latitude: 48.59 Longitude: -109.2312849 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
30% chance of rain & snow on Overnight 60% chance of rain & snow on Wednesday Increasing Clouds on Thursday 10% chance of snow on Friday Mostly Sunny on Saturday Mostly Sunny on Sunday 10% chance of snow on Monday Mostly Sunny on Tuesday
Low: 39°F High: 46 °F High: 34°F High: 44°F High: 25°F High: 30°F High: 28°F High: 30°F
Low: 5 °F Low: 21°F Low: 5 °F Low: 10°F Low: 14°F Low: 6°F  
Rain & Snow Rain & Snow Increasing Clouds Snow Mostly Sunny Mostly Sunny Snow Mostly Sunny
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Current Conditions at
HAVRE - (KHVR)
48°
Partly Cloudy
as of 4:53 AM MST
Rel. Humidity: 45%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.24 in.
Flight Rule: VFR
Wind Data
8 MPH
230° Southwest
Cloud Level(s): Scattered at 11000ft
Current Conditions at
LEWISTOWN - (KLWT)
50°
Feels like 42°F
Clear
as of 4:54 AM MST
Rel. Humidity: 31%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.37 in.
Flight Rule: VFR
Wind Data
24 MPH
Gust: 33 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
GLASGOW - (KGGW)
34°
Feels like 24°F
Mostly Cloudy
as of 4:53 AM MST
Rel. Humidity: 86%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.39 in.
Flight Rule: VFR
Wind Data
14 MPH
130° Southeast
Cloud Level(s): Broken at 11000ft
30% chance of rain & snow Overnight Overnight... A chance of rain and snow. Cloudy, with a steady temperature around 39. Southeast wind around 11 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

60% chance of rain & snow Wednesday Wednesday... Rain likely before 1pm, then a slight chance of rain and snow between 1pm and 2pm, then a chance of snow after 2pm. Patchy blowing dust after 10am. Cloudy through mid morning, then gradual clearing, with a temperature rising to near 46 by 10am, then falling to around 29 during the remainder of the day. Windy, with a south southeast wind 14 to 24 mph becoming west 34 to 44 mph. Winds could gust as high as 60 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

Dust on Wednesday Night Wednesday Night... Patchy blowing dust before 8pm. Cloudy during the early evening, then gradual clearing, with a low around 5. Wind chill values as low as -5. Windy, with a west northwest wind 27 to 37 mph decreasing to 8 to 18 mph. Winds could gust as high as 55 mph.

Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 34. Wind chill values as low as -5. South southwest wind 6 to 9 mph becoming southeast in the morning.

30% chance of rain & snow Thursday Night Thursday Night... A chance of snow before 8pm, then a chance of rain and snow between 8pm and 2am, then a slight chance of rain after 2am. Mostly cloudy, with a low around 21. Southeast wind 10 to 17 mph becoming south southwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

10% chance of snow Friday Friday... A 10 percent chance of snow after 11am. Mostly sunny, with a high near 44. Breezy, with a west northwest wind 16 to 22 mph, with gusts as high as 34 mph.

20% chance of snow Friday Night Friday Night... A 20 percent chance of snow. Partly cloudy, with a low around 5. West northwest wind 6 to 10 mph.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 25. West wind 6 to 8 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 10.

Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 30.

10% chance of snow Sunday Night Sunday Night... A slight chance of snow. Mostly cloudy, with a low around 14.

10% chance of snow Monday Monday... A slight chance of snow. Mostly cloudy, with a high near 28.

Cloudy on Monday Night Monday Night... Partly cloudy, with a low around 6.

Mostly Sunny on Tuesday Tuesday... Mostly sunny, with a high near 30.

Current Radar Image


Sun Almanac for Chinook, Montana
Sunrise: 08:04 AM
Sunset: 4:22 PM
Civil Sunrise:07:27 AM
Civil Sunset: 4:59 PM
Nautical Sunrise: 06:47 AM
Nautical Sunset: 5:39 PM
Astro Sunrise: 06:09 AM
Astro Sunset: 6:18 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.