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Summit, Montana Weather Forecast
Summit, Montana Weather
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Weather Forecast for Summit, Montana : Glacier County
Issued: 9:27 pm MST Dec 16, 2025 Latitude: 48.3194078 Longitude: -113.3534283 View on Google Maps

MouseOver for Detail Forecast
Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
100% chance of rain & snow on Overnight 90% chance of blowing snow on Wednesday 80% chance of snow on Thursday 80% chance of snow on Friday Snow on Saturday 20% chance of snow on Sunday Snow on Monday 20% chance of snow on Tuesday
Low: 41°F High: 27 °F High: 36°F High: 34°F High: 29°F High: 31°F High: 35°F High: 36°F
Low: 23°F Low: 26°F Low: 21°F Low: 19°F Low: 24°F Low: 22°F  
Rain & Snow Blowing Snow Snow Snow Snow Snow Snow Snow
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Current Conditions at
CUTBANK - (KCTB)
45°
Feels like 36°F
Clear
as of 1:56 AM MST
Rel. Humidity: 56%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.35 in.
Flight Rule: VFR
Wind Data
22 MPH
Gust: 33 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
MISSOULA - (KMSO)
48°
Cloudy
Light Rain
as of 1:53 AM MST
Rel. Humidity: 61%
Dew Point: 36°F
Visibility: 10 Miles
Pressure: 29.52 in.
Flight Rule: VFR
Wind Data
6 MPH
260° West
Cloud Level(s): Broken at 5500ft, Solid Overcast at 7000ft
Current Conditions at
GREAT FALLS - (KGTF)
46°
Feels like 39°F
Clear
as of 1:53 AM MST
Rel. Humidity: 42%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 29.45 in.
Flight Rule: VFR
Wind Data
17 MPH
210° Southwest
Cloud Level(s): Clear
100% chance of rain & snow Overnight Overnight... Rain and snow. Steady temperature around 41. Breezy, with a southwest wind around 24 mph, with gusts as high as 47 mph. Chance of precipitation is 100%. Total nighttime snow accumulation of less than one inch possible.

90% chance of blowing snow Wednesday Wednesday... Rain and snow, becoming all snow after 8am. Patchy blowing snow before 2pm, then areas of blowing snow after 3pm. Temperature falling to around 27 by 2pm. Windy, with a west southwest wind 32 to 40 mph, with gusts as high as 70 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

40% chance of blowing snow Wednesday Night Wednesday Night... A 40 percent chance of snow. Patchy blowing snow before 11pm. Mostly cloudy, with a low around 23. Windy, with a west southwest wind 20 to 30 mph, with gusts as high as 50 mph. New snow accumulation of less than one inch possible.

80% chance of snow Thursday Thursday... Snow, mainly after 11am. High near 36. Southwest wind 13 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

90% chance of snow Thursday Night Thursday Night... Snow. The snow could be heavy at times. Low around 26. Breezy, with a southwest wind 14 to 24 mph, with gusts as high as 46 mph. Chance of precipitation is 90%. New snow accumulation of 4 to 8 inches possible.

80% chance of snow Friday Friday... Snow. High near 34. Breezy, with a west southwest wind 18 to 24 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

70% chance of snow Friday Night Friday Night... Snow likely. Mostly cloudy, with a low around 21. West southwest wind around 15 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

Snow on Saturday Saturday... Snow. Mostly cloudy, with a high near 29. West southwest wind 15 to 17 mph, with gusts as high as 31 mph.

20% chance of snow Saturday Night Saturday Night... A chance of snow. Mostly cloudy, with a low around 19.

20% chance of snow Sunday Sunday... A chance of snow. Partly sunny, with a high near 31.

Snow on Sunday Night Sunday Night... Snow likely. Mostly cloudy, with a low around 24.

Snow on Monday Monday... Snow likely. Mostly cloudy, with a high near 35.

20% chance of snow Monday Night Monday Night... A chance of snow. Mostly cloudy, with a low around 22.

20% chance of snow Tuesday Tuesday... A chance of snow. Partly sunny, with a high near 36.

Current Radar Image


Sun Almanac for Summit, Montana
Sunrise: 08:20 AM
Sunset: 4:40 PM
Civil Sunrise:07:43 AM
Civil Sunset: 5:17 PM
Nautical Sunrise: 07:03 AM
Nautical Sunset: 5:56 PM
Astro Sunrise: 06:25 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.