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Grant, Montana Weather Forecast
Grant, Montana Weather
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Weather Forecast for Grant, Montana : Beaverhead County
Issued: 9:27 pm MST Dec 16, 2025 Latitude: 45.0085344 Longitude: -113.0669782 View on Google Maps

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Overnight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
60% chance of rain on Overnight 90% chance of rain & snow on Wednesday 80% 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: 40°F High: 45°F High: 37°F High: 41°F High: 45°F High: 46°F
Low: 20°F Low: 31°F Low: 22°F Low: 16°F Low: 27°F Low: 27°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
CHALLIS - (KLLJ)
45°
Feels like 38°F
Mostly Cloudy
as of 1:55 AM MST
Rel. Humidity: 56%
Dew Point: 30°F
Visibility: 10 Miles
Pressure: 29.77 in.
Flight Rule: VFR
Wind Data
12 MPH
Gust: 17 MPH
190° South
Cloud Level(s): Broken at 4800ft, Broken at 8000ft
Current Conditions at
REXBURG - (KRXE)
46°
Feels like 41°F
Cloudy
as of 1:53 AM MST
Rel. Humidity: 45%
Dew Point: 27°F
Visibility: 10 Miles
Pressure: 29.91 in.
Flight Rule: VFR
Wind Data
12 MPH
200° South
Cloud Level(s): Solid Overcast at 3900ft
60% chance of rain Overnight Overnight... Rain likely, mainly after 5am. Mostly cloudy, with a steady temperature around 41. South southwest wind 18 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 60%.

90% chance of rain & snow Wednesday Wednesday... Rain, possibly mixed with snow before 10am, then a chance of snow between 10am and noon. Temperature rising to near 44 by 10am, then falling to around 29 during the remainder of the day. Windy, with a west wind 25 to 30 mph increasing to 39 to 44 mph in the afternoon. Winds could gust as high as 55 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 20. Breezy, with a west wind 21 to 26 mph decreasing to 14 to 19 mph after midnight. Winds could gust as high as 43 mph.

80% chance of snow Thursday Thursday... Snow, mainly after 11am. High near 40. South wind 8 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

80% chance of rain & snow Thursday Night Thursday Night... Rain, possibly mixed with snow, becoming all rain after 11pm. Low around 31. South wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

70% chance of rain & snow Friday Friday... Rain and snow likely. Mostly cloudy, with a high near 45. Breezy, with a southwest wind 15 to 23 mph, with gusts as high as 31 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. Mostly cloudy, with a low around 22. West southwest wind 10 to 15 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 before 11am. Mostly sunny, with a high near 37. West southwest wind 9 to 15 mph, with gusts as high as 22 mph.

Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 16.

10% chance of snow Sunday Sunday... A slight chance of snow after 11am. Partly 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 27.

20% chance of rain & snow Monday Monday... A chance of rain and snow. Partly sunny, with a high near 45.

10% chance of rain & snow Monday Night Monday Night... A slight chance of rain and snow. Mostly cloudy, with a low around 27.

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

Current Radar Image


Sun Almanac for Grant, Montana
Sunrise: 08:05 AM
Sunset: 4:52 PM
Civil Sunrise:07:32 AM
Civil Sunset: 5:26 PM
Nautical Sunrise: 06:54 AM
Nautical Sunset: 6:03 PM
Astro Sunrise: 06:19 AM
Astro Sunset: 6:39 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.