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Sioux Crossing, Montana Weather Forecast
Sioux Crossing, Montana Weather
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Weather Forecast for Sioux Crossing, Montana : Sweet Grass County
Issued: 2:54 am MST Dec 17, 2025 Latitude: 45.8713257 Longitude: -110.2443621 View on Google Maps

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Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
30% chance of rain on Overnight 90% chance of rain & snow on Wednesday 30% chance of snow on Thursday 80% chance of rain & snow on Friday 30% chance of snow on Saturday 20% chance of snow on Sunday 40% chance of rain & snow on Monday 30% chance of snow on Tuesday
Low: 46°F High: 29 °F High: 39°F High: 45 °F High: 34°F High: 37°F High: 44°F High: 41°F
Low: 24°F Low: 42 °F Low: 26°F Low: 22°F Low: 38 °F Low: 29°F  
Rain Rain & Snow Snow Rain & Snow Snow Snow Rain & Snow Snow
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Current Conditions at
LIVINGSTON - (KLVM)
48°
Feels like 38°F
Clear
as of 2:53 AM MST
Rel. Humidity: 39%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.54 in.
Flight Rule: VFR
Wind Data
43 MPH
Gust: 59 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
BOZEMAN - (KBZN)
46°
Mostly Cloudy
as of 2:56 AM MST
Rel. Humidity: 36%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.62 in.
Flight Rule: VFR
Wind Data
5 MPH
Cloud Level(s): Scattered at 8500ft, Broken at 11000ft
Current Conditions at
BILLINGS - (KBIL)
46°
Feels like 41°F
Mostly Clear
as of 2:53 AM MST
Rel. Humidity: 45%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.61 in.
Flight Rule: VFR
Wind Data
10 MPH
240° Southwest
Cloud Level(s): Few at 24000ft
Current Conditions at
LEWISTOWN - (KLWT)
48°
Feels like 40°F
Clear
as of 2:54 AM MST
Rel. Humidity: 34%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.51 in.
Flight Rule: VFR
Wind Data
23 MPH
220° Southwest
Cloud Level(s): Clear
30% chance of rain Overnight Overnight... A 30 percent chance of showers, mainly after 5am. Mostly cloudy, with a steady temperature around 46. West southwest wind around 45 mph, with gusts as high as 65 mph.
90% chance of rain & snow Wednesday Wednesday... Rain and snow showers before 11am, then a chance of snow showers between 11am and 1pm. Temperature falling to around 29 by 5pm. West wind 49 to 55 mph, with gusts as high as 75 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 24. West wind 45 to 55 mph decreasing to 31 to 41 mph after midnight. Winds could gust as high as 75 mph.
30% chance of snow Thursday Thursday... A 30 percent chance of snow after 11am. Partly sunny, with a high near 39. West southwest wind 20 to 23 mph. New snow accumulation of less than a half inch possible.
50% chance of rain & snow Thursday Night Thursday Night... A chance of snow before 11pm, then a chance of rain and snow between 11pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a temperature rising to around 42 by 5am. West southwest wind 28 to 38 mph increasing to 38 to 48 mph after midnight. Winds could gust as high as 70 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
80% chance of rain & snow Friday Friday... Rain and snow, mainly after 11am. Temperature rising to near 45 by 11am, then falling to around 39 during the remainder of the day. West southwest wind 38 to 48 mph decreasing to 28 to 38 mph in the afternoon. Winds could gust as high as 70 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
80% chance of snow Friday Night Friday Night... Snow, mainly before 11pm. Low around 26. West wind 22 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
30% chance of snow Saturday Saturday... A 30 percent chance of snow before 11am. Mostly sunny, with a high near 34. West wind around 22 mph.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 22. West wind 18 to 21 mph.
20% chance of snow Sunday Sunday... A 20 percent chance of snow after 11am. Partly sunny, with a high near 37. West southwest wind 11 to 17 mph.
30% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow. Mostly cloudy, with a temperature rising to around 38 by 5am. West southwest wind 10 to 20 mph. Chance of precipitation is 30%.
40% chance of rain & snow Monday Monday... A chance of rain and snow. Mostly cloudy, with a high near 44. West southwest wind 20 to 22 mph. Chance of precipitation is 40%.
30% chance of rain & snow Monday Night Monday Night... A chance of rain and snow. Mostly cloudy, with a low around 29. West wind 18 to 20 mph. Chance of precipitation is 30%.
30% chance of snow Tuesday Tuesday... A 30 percent chance of snow. Partly sunny, with a high near 41. Southwest wind 14 to 17 mph.
Current Radar Image


Sun Almanac for Sioux Crossing, Montana
Sunrise: 07:57 AM
Sunset: 4:37 PM
Civil Sunrise:07:23 AM
Civil Sunset: 5:12 PM
Nautical Sunrise: 06:45 AM
Nautical Sunset: 5:50 PM
Astro Sunrise: 06:09 AM
Astro Sunset: 6:26 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.