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Grandjean, Idaho Weather Forecast
Grandjean, Idaho Weather
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Weather Forecast for Grandjean, Idaho : Custer County
Issued: 3:04 am MDT Oct 31, 2025 Latitude: 44.1601828 Longitude: -115.167593 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Sunny on Today Mostly Cloudy on Tonight Mostly Sunny on Saturday 30% chance of snow on Sunday Mostly Sunny on Monday 40% chance of rain & snow on Tuesday 40% chance of rain & snow on Wednesday 60% chance of snow on Thursday
High: 44°F Low: 36°F High: 48°F High: 39°F High: 47°F High: 38°F High: 42°F High: 34°F
Low: 36°F Low: 32°F Low: 34°F Low: 36°F Low: 31°F  
Mostly Sunny Mostly Cloudy Mostly Sunny Snow Mostly Sunny Rain & Snow Rain & Snow Snow
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Current Conditions at
STANLEY RANGER STN - (KSNT)
18°
Clear
as of 8:51 AM MDST
Rel. Humidity: 92%
Dew Point: 16°F
Pressure: 30.29 in.
Wind Data
Calm
Current Conditions at
CHALLIS - (KLLJ)
27°
Clear
as of 8:55 AM MDST
Rel. Humidity: 79%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
3 MPH
010° North
Cloud Level(s): Clear
Current Conditions at
MCCALL - (KMYL)
25°
Clear
as of 8:51 AM MDST
Rel. Humidity: 85%
Dew Point: 21°F
Visibility: 10 Miles
Pressure: 30.22 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Sunny on Today Today... Mostly sunny, with a high near 44. Calm wind becoming west southwest around 5 mph.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 36. Light and variable wind becoming south southeast around 6 mph in the evening.

Mostly Sunny on Saturday Saturday... Mostly sunny, with a high near 48. South southwest wind 5 to 9 mph.

40% chance of snow Saturday Night Saturday Night... A 40 percent chance of showers after midnight. Snow level 9100 feet rising to 9900 feet after midnight. Mostly cloudy, with a low around 36. South southwest wind 8 to 15 mph.

30% chance of snow Sunday Sunday... A 30 percent chance of showers before noon. Snow level 9600 feet lowering to 8100 feet in the afternoon . Mostly cloudy, with a high near 39. West wind 8 to 13 mph.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 32.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 47.

40% chance of rain & snow Monday Night Monday Night... A chance of rain showers before 3am, then a chance of rain and snow showers. Snow level 9400 feet lowering to 8800 feet after midnight . Mostly cloudy, with a low around 34. Chance of precipitation is 40%.

40% chance of rain & snow Tuesday Tuesday... A chance of rain and snow showers before 9am, then a chance of snow showers. Mostly cloudy, with a high near 38. Chance of precipitation is 40%.

20% chance of rain & snow Tuesday Night Tuesday Night... A slight chance of snow showers before 9pm, then a slight chance of rain and snow showers. Snow level rising to 8800 feet after midnight. Mostly cloudy, with a low around 36. Chance of precipitation is 20%.

40% chance of rain & snow Wednesday Wednesday... A chance of rain and snow showers. Snow level 8900 feet. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.

80% chance of rain & snow Wednesday Night Wednesday Night... Rain and snow showers. Snow level 8600 feet lowering to 8100 feet after midnight . Low around 31. Chance of precipitation is 80%.

60% chance of snow Thursday Thursday... Snow showers likely. Mostly cloudy, with a high near 34. Chance of precipitation is 60%.

Current Radar Image


Sun Almanac for Grandjean, Idaho
Sunrise: 08:17 AM
Sunset: 6:32 PM
Civil Sunrise:07:47 AM
Civil Sunset: 7:02 PM
Nautical Sunrise: 07:13 AM
Nautical Sunset: 7:36 PM
Astro Sunrise: 06:39 AM
Astro Sunset: 8:09 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.