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Grantsdale, Montana Weather Forecast
Grantsdale, Montana Weather
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Click for High Wind Warning for Grantsdale, Montana
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Weather Forecast for Grantsdale, Montana : Ravalli County
Issued: 1:01 am MST Dec 17, 2025 Latitude: 46.2035325 Longitude: -114.1417588 View on Google Maps

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Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
50% chance of rain on Overnight 50% chance of rain on Wednesday 50% chance of rain on Thursday 50% chance of rain on Friday 20% chance of rain on Saturday 20% chance of rain on Sunday 20% chance of rain on Monday 20% chance of rain on Tuesday
Low: 34°F High: 31 °F High: 42°F High: 44°F High: 35°F High: 39°F High: 42°F High: 41°F
Low: 26°F Low: 36°F Low: 25°F Low: 22°F Low: 27°F Low: 25°F  
Rain Rain Rain Rain Rain Rain Rain Rain
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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
ELK CITY - (KP69)
45°
Cloudy
as of 12:52 AM PST
Rel. Humidity: 93%
Dew Point: 43°F
Pressure: 29.55 in.
Wind Data
3 MPH
010° North
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
50% chance of rain Overnight Overnight... A 50 percent chance of rain. Cloudy, with a low around 34. Breezy, with a south wind around 22 mph, with gusts as high as 33 mph. New precipitation amounts between a tenth and quarter of an inch possible.
50% chance of rain Wednesday Wednesday... A 50 percent chance of rain. Mostly cloudy, with a temperature falling to around 31 by 5pm. Windy, with a south wind 23 to 30 mph becoming west in the morning. Winds could gust as high as 45 mph. New precipitation amounts between a quarter and half of an inch possible.
30% chance of rain Wednesday Night Wednesday Night... A 30 percent chance of rain. Mostly cloudy, with a low around 26. Breezy, with a west southwest wind 18 to 23 mph becoming south 7 to 12 mph in the evening. Winds could gust as high as 32 mph.
50% chance of rain Thursday Thursday... A 50 percent chance of rain. Cloudy, with a high near 42. South wind 7 to 13 mph, with gusts as high as 22 mph. New precipitation amounts between a tenth and quarter of an inch possible.
50% chance of rain Thursday Night Thursday Night... A 50 percent chance of rain. Cloudy, with a low around 36. South wind 15 to 18 mph, with gusts as high as 34 mph. New precipitation amounts between a quarter and half of an inch possible.
50% chance of rain Friday Friday... A 50 percent chance of rain. Cloudy, with a high near 44. New precipitation amounts between a tenth and quarter of an inch possible.
50% chance of rain Friday Night Friday Night... A 50 percent chance of rain. Mostly cloudy, with a low around 25.
20% chance of rain Saturday Saturday... A chance of rain. Partly sunny, with a high near 35.
20% chance of rain Saturday Night Saturday Night... A chance of rain. Mostly cloudy, with a low around 22.
20% chance of rain Sunday Sunday... A chance of rain. Partly sunny, with a high near 39.
20% chance of rain Sunday Night Sunday Night... A chance of rain. Mostly cloudy, with a low around 27.
20% chance of rain Monday Monday... A chance of rain. Mostly cloudy, with a high near 42.
20% chance of rain Monday Night Monday Night... A chance of rain. Mostly cloudy, with a low around 25.
20% chance of rain Tuesday Tuesday... A chance of rain. Partly sunny, with a high near 41.
Current Radar Image


Sun Almanac for Grantsdale, Montana
Sunrise: 08:14 AM
Sunset: 4:52 PM
Civil Sunrise:07:39 AM
Civil Sunset: 5:26 PM
Nautical Sunrise: 07:01 AM
Nautical Sunset: 6:05 PM
Astro Sunrise: 06:25 AM
Astro Sunset: 6:41 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.