National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

Lat: 44.523°NLon: 114.21611°WElev: 5026.0ft.

Clear

46°F

8°C

Humidity 52%
Wind Speed S 14 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill40°F (4°C)
Last update 08 Dec 11:20 PM MST
Extended Forecast for

3 Miles S Clayton ID

  • Tonight

    Tonight: Snow, mainly after 2am. Temperature rising to around 39 by 3am. West wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 34 °F⇑

    Snow

  • Tuesday

    Tuesday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 39. West wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 39 °F

    Snow Likely

  • Tuesday Night

    Tuesday Night: Snow likely before 11pm, then rain and snow between 11pm and 2am, then rain after 2am. Snow level rising to 8800 feet after midnight. Temperature falling to near 36 by 8pm, then rising to around 41 during the remainder of the night. West wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 36 °F⇑

    Rain/Snow

  • Wednesday

    Wednesday: Rain likely, mainly before 11am. Snow level 8400 feet rising to 9000 feet. Mostly cloudy, with a high near 42. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.

    High: 42 °F

    Rain Likely
    then Chance
    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 2am, then a slight chance of rain and snow. Snow level 8600 feet lowering to 8000 feet after midnight . Mostly cloudy, with a low around 35. West wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 35 °F

    Chance Rain
    then Slight
    Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 11am. Snow level 8000 feet. Partly sunny, with a high near 42. Chance of precipitation is 20%.

    High: 42 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Snow, mainly after 2am. Temperature rising to around 39 by 3am. West wind around 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 39. West wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tuesday Night
Snow likely before 11pm, then rain and snow between 11pm and 2am, then rain after 2am. Snow level rising to 8800 feet after midnight. Temperature falling to near 36 by 8pm, then rising to around 41 during the remainder of the night. West wind 14 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Rain likely, mainly before 11am. Snow level 8400 feet rising to 9000 feet. Mostly cloudy, with a high near 42. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of rain before 2am, then a slight chance of rain and snow. Snow level 8600 feet lowering to 8000 feet after midnight . Mostly cloudy, with a low around 35. West wind 13 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday
A slight chance of rain and snow before 11am. Snow level 8000 feet. Partly sunny, with a high near 42. Chance of precipitation is 20%.
Thursday Night
Mostly cloudy, with a low around 37.
Friday
Partly sunny, with a high near 42.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Mostly sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Clayton ID
 44.23°N 114.41°W (Elev. 7694 ft)
Last Update:
10:31 pm MST Dec 8, 2025
Forecast Valid:
11pm MST Dec 8, 2025-6pm MST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation