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Sweetwater, Montana Weather Forecast
Sweetwater, Montana Weather
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Weather Forecast for Sweetwater, Montana : Madison County
Issued: 9:27 pm MST Dec 16, 2025 Latitude: 45.1157537 Longitude: -112.1841535 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
30% chance of rain on Overnight 90% chance of rain & snow on Wednesday 60% chance of snow on Thursday 70% chance of rain & snow on Friday 10% chance of snow on Saturday 10% chance of snow on Sunday 20% chance of rain & snow on Monday 10% chance of rain & snow on Tuesday
Low: 41°F High: 44 °F High: 38°F High: 45°F High: 37°F High: 40°F High: 46°F High: 46°F
Low: 22°F Low: 31°F Low: 25°F Low: 19°F Low: 31°F Low: 32°F  
Rain Rain & Snow Snow Rain & Snow Snow Snow Rain & Snow Rain & Snow
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Current Conditions at
DILLON - (KDLN)
46°
Feels like 39°F
Mostly Cloudy
as of 1:53 AM MST
Rel. Humidity: 36%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 29.70 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 26 MPH
200° South
Cloud Level(s): Broken at 11000ft
Current Conditions at
BOZEMAN - (KBZN)
39°
Cloudy
as of 1:56 AM MST
Rel. Humidity: 55%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.68 in.
Flight Rule: VFR
Wind Data
7 MPH
110° East
Cloud Level(s): Solid Overcast at 9500ft
30% chance of rain Overnight Overnight... A 30 percent chance of rain, mainly between 3am and 5am. Mostly cloudy, with a steady temperature around 41. Breezy, with a south wind around 22 mph, with gusts as high as 36 mph.

90% chance of rain & snow Wednesday Wednesday... Rain and snow before 11am, then a slight chance of snow between 11am and noon. Temperature rising to near 44 by 10am, then falling to around 29 during the remainder of the day. Windy, with a south southwest wind 25 to 30 mph becoming west 38 to 43 mph in the morning. Winds could gust as high as 60 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Mostly Cloudy on Wednesday Night Wednesday Night... Mostly cloudy, with a low around 22. Breezy, with a west wind 24 to 29 mph decreasing to 11 to 16 mph after midnight. Winds could gust as high as 47 mph.

60% chance of snow Thursday Thursday... Snow likely after 11am. Mostly cloudy, with a high near 38. Breezy, with a south wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

60% chance of rain & snow Thursday Night Thursday Night... Snow likely before 8pm, then rain and snow likely between 8pm and 2am, then a chance of rain after 2am. Mostly cloudy, with a low around 31. South wind 16 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

70% chance of rain & snow Friday Friday... A chance of rain before 8am, then rain and snow likely. Mostly cloudy, with a high near 45. Breezy, with a southwest wind 15 to 20 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

50% chance of snow Friday Night Friday Night... A 50 percent chance of snow. Mostly cloudy, with a low around 25. Southwest wind 10 to 18 mph, with gusts as high as 31 mph. New snow accumulation of less than a half inch possible.

10% chance of snow Saturday Saturday... A slight chance of snow. Mostly sunny, with a high near 37. Southwest wind 8 to 16 mph, with gusts as high as 23 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 19.

10% chance of snow Sunday Sunday... A slight chance of snow after 11am. Partly sunny, with a high near 40.

20% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow. Mostly cloudy, with a low around 31.

20% chance of rain & snow Monday Monday... A chance of rain and snow. Partly sunny, with a high near 46.

10% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 32.

10% chance of rain & snow Tuesday Tuesday... A slight chance of rain and snow. Mostly cloudy, with a high near 46.

Sun Almanac for Sweetwater, Montana
Sunrise: 08:02 AM
Sunset: 4:48 PM
Civil Sunrise:07:28 AM
Civil Sunset: 5:22 PM
Nautical Sunrise: 06:51 AM
Nautical Sunset: 5:59 PM
Astro Sunrise: 06:15 AM
Astro Sunset: 6:35 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.