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Dearborn, Montana Weather Forecast
Dearborn, Montana Weather
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Weather Forecast for Dearborn, Montana : Lewis and Clark County
Issued: 9:27 pm MST Dec 16, 2025 Latitude: 47.1985567 Longitude: -112.0911158 View on Google Maps

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Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
60% chance of rain on Tonight 80% chance of rain & snow on Wednesday 30% chance of snow on Thursday 70% chance of rain & snow on Friday 10% chance of snow on Saturday Mostly Sunny on Sunday 20% chance of rain & snow on Monday 10% chance of rain & snow on Tuesday
Low: 48°F High: 33 °F High: 45°F High: 46°F High: 39°F High: 41°F High: 44°F High: 45°F
Low: 28°F Low: 37°F Low: 26°F Low: 26°F Low: 28°F Low: 28°F  
Rain Rain & Snow Snow Rain & Snow Snow Mostly Sunny Rain & Snow Rain & Snow
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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
Current Conditions at
HELENA - (KHLN)
52°
Clear
as of 9:53 PM MST
Rel. Humidity: 34%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.74 in.
Flight Rule: VFR
Wind Data
16 MPH
Gust: 24 MPH
270° West
Cloud Level(s): Clear
Current Conditions at
BUTTE - (KBTM)
43°
Clear
as of 9:53 PM MST
Rel. Humidity: 45%
Dew Point: 23°F
Visibility: 10 Miles
Pressure: 29.87 in.
Flight Rule: VFR
Wind Data
7 MPH
160° South
Cloud Level(s): Clear
60% chance of rain Tonight Tonight... Rain likely, mainly after 5am. Mostly cloudy, with a steady temperature around 48. Breezy, with a south southwest wind 26 to 28 mph, with gusts as high as 44 mph. Chance of precipitation is 60%.
80% chance of rain & snow Wednesday Wednesday... Rain before 1pm, then a chance of snow. Patchy blowing dust after 9am. Temperature falling to around 33 by 5pm. Very windy, with a west wind 31 to 36 mph increasing to 42 to 47 mph in the morning. Winds could gust as high as 60 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Cloudy on Wednesday Night Wednesday Night... Partly cloudy, with a low around 28. Windy, with a west wind 28 to 33 mph decreasing to 18 to 23 mph after midnight. Winds could gust as high as 48 mph.
30% chance of snow Thursday Thursday... A 30 percent chance of snow, mainly between 11am and 5pm. Mostly cloudy, with a high near 45. South southwest wind 11 to 18 mph, with gusts as high as 26 mph. Little or no snow accumulation expected.
70% chance of rain & snow Thursday Night Thursday Night... Rain likely, possibly mixed with snow, becoming all rain after 8pm. Mostly cloudy, with a low around 37. Breezy, with a south southwest wind 17 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
70% chance of rain & snow Friday Friday... Rain and snow likely, becoming all snow after 8am. Mostly cloudy, with a high near 46. Breezy, with a west wind 20 to 23 mph, with gusts as high as 33 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
50% chance of snow Friday Night Friday Night... A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 26. West southwest wind 10 to 14 mph, with gusts as high as 23 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 39. West southwest wind 10 to 20 mph, with gusts as high as 28 mph.
10% chance of snow Saturday Night Saturday Night... A slight chance of snow before 11pm. Partly cloudy, with a low around 26.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 41.
20% chance of rain & snow Sunday Night Sunday Night... A chance of rain and snow. Mostly cloudy, with a low around 28.
20% chance of rain & snow Monday Monday... A chance of rain and snow. Partly sunny, with a high near 44.
10% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 28.
10% chance of rain & snow Tuesday Tuesday... A slight chance of rain and snow. Mostly sunny, with a high near 45.
Current Radar Image


Sun Almanac for Dearborn, Montana
Sunrise: 08:10 AM
Sunset: 4:39 PM
Civil Sunrise:07:34 AM
Civil Sunset: 5:15 PM
Nautical Sunrise: 06:55 AM
Nautical Sunset: 5:54 PM
Astro Sunrise: 06:18 AM
Astro Sunset: 6:31 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.