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Sour Dough Flat, Montana Weather Forecast
Sour Dough Flat, Montana Weather
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Weather Forecast for Sour Dough Flat, Montana : Blaine County
Issued: 9:27 pm MST Dec 16, 2025 Latitude: 47.9994291 Longitude: -109.3751813 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
10% chance of rain 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 10% chance of snow on Monday Partly Sunny on Tuesday
Low: 35°F High: 42 °F High: 33°F High: 42°F High: 31°F High: 33°F High: 36°F High: 36°F
Low: 15°F Low: 27°F Low: 17°F Low: 20°F Low: 22°F Low: 23°F  
Rain Rain & Snow Increasing Clouds Rain & Snow Mostly Sunny Mostly Sunny Snow Partly Sunny
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Current Conditions at
HAVRE - (KHVR)
45°
Feels like 38°F
Clear
as of 11:53 PM MST
Rel. Humidity: 65%
Dew Point: 34°F
Visibility: 10 Miles
Pressure: 29.57 in.
Flight Rule: VFR
Wind Data
12 MPH
210° Southwest
Cloud Level(s): Clear
Current Conditions at
LEWISTOWN - (KLWT)
46°
Feels like 41°F
Cloudy
as of 11:54 PM MST
Rel. Humidity: 45%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.67 in.
Flight Rule: VFR
Wind Data
12 MPH
240° Southwest
Cloud Level(s): Solid Overcast at 11000ft
Current Conditions at
GREAT FALLS - (KGTF)
41°
Clear
as of 11:53 PM MST
Rel. Humidity: 60%
Dew Point: 28°F
Visibility: 10 Miles
Pressure: 29.59 in.
Flight Rule: VFR
Wind Data
3 MPH
150° Southeast
Cloud Level(s): Clear
10% chance of rain Overnight Overnight... A 10 percent chance of rain after 5am. Mostly cloudy, with a low around 35. South southwest wind 11 to 13 mph, with gusts as high as 23 mph.
50% chance of rain & snow Wednesday Wednesday... A chance of rain before 10am, then a chance of snow after 3pm. Patchy blowing dust after 10am. Mostly cloudy, then gradually becoming sunny, with a temperature rising to near 42 by 10am, then falling to around 30 during the remainder of the day. Windy, with a south southwest wind 22 to 27 mph becoming west 35 to 40 mph in the afternoon. Winds could gust as high as 65 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
20% chance of blowing snow Wednesday Night Wednesday Night... A 20 percent chance of snow before 11pm. Patchy blowing snow before 11pm. Patchy blowing dust before 10pm. Partly cloudy, with a low around 15. Windy, with a west northwest wind 31 to 36 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 60 mph.
Increasing Clouds on Thursday Thursday... Increasing clouds, with a high near 33. West wind 7 to 13 mph becoming south in the afternoon. Winds could gust as high as 21 mph.
20% chance of rain & snow Thursday Night Thursday Night... A slight chance of snow before 11pm, then a slight chance of rain after 5am. Mostly cloudy, with a low around 27. South southeast wind 6 to 14 mph becoming west southwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
20% chance of rain & snow Friday Friday... A slight chance of rain and snow before 8am, then a slight chance of snow. Mostly sunny, with a high near 42. Breezy, with a west wind 15 to 22 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
30% chance of snow Friday Night Friday Night... A 30 percent chance of snow, mainly before 11pm. Partly cloudy, with a low around 17. West wind 8 to 10 mph, with gusts as high as 20 mph. New snow accumulation of less than a half inch possible.
Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 31. West wind 8 to 10 mph, with gusts as high as 20 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 20.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 33.
10% chance of snow Sunday Night Sunday Night... A slight chance of snow. Mostly cloudy, with a low around 22.
10% chance of snow Monday Monday... A slight chance of snow. Partly sunny, with a high near 36.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 23.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 36.
Current Radar Image


Sun Almanac for Sour Dough Flat, Montana
Sunrise: 08:02 AM
Sunset: 4:25 PM
Civil Sunrise:07:26 AM
Civil Sunset: 5:02 PM
Nautical Sunrise: 06:46 AM
Nautical Sunset: 5:41 PM
Astro Sunrise: 06:09 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.