Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

28°F

-2°C

Humidity 74%
Wind Speed N 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 08 Dec 04:05 AM MST
Extended Forecast for

21 Miles N Mackay ID

  • Today

    Today: Partly sunny, with a high near 34. West wind 9 to 11 mph.

    High: 34 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of rain and snow before 3am, then a chance of rain between 3am and 5am, then snow likely, possibly mixed with rain after 5am.  Snow level rising to 7900 feet after midnight. Mostly cloudy, with a temperature rising to around 34 by 3am. West wind 13 to 16 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Slight Chance
    Rain/Snow
    then
    Rain/Snow
    Likely

  • Tuesday

    Tuesday: Snow likely, possibly mixed with rain.  Snow level 7700 feet. Mostly cloudy, with a high near 38. West wind 14 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Rain/Snow
    Likely

  • Tuesday Night

    Tuesday Night: Rain and snow likely, becoming all rain after 2am.  Snow level 7300 feet rising to 8500 feet after midnight. Mostly cloudy, with a low around 32. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain likely, mainly before 11am.  Snow level 8700 feet. Mostly cloudy, with a high near 42. West wind around 18 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%.

    High: 42 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of rain, mainly before 11pm.  Snow level 8500 feet. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain.  Snow level 8300 feet. Partly sunny, with a high near 42.

    High: 42 °F

    Slight Chance
    Rain

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 42.

    High: 42 °F

    Partly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 34. West wind 9 to 11 mph.
Tonight
A slight chance of rain and snow before 3am, then a chance of rain between 3am and 5am, then snow likely, possibly mixed with rain after 5am. Snow level rising to 7900 feet after midnight. Mostly cloudy, with a temperature rising to around 34 by 3am. West wind 13 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Tuesday
Snow likely, possibly mixed with rain. Snow level 7700 feet. Mostly cloudy, with a high near 38. West wind 14 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain and snow likely, becoming all rain after 2am. Snow level 7300 feet rising to 8500 feet after midnight. Mostly cloudy, with a low around 32. West southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
Rain likely, mainly before 11am. Snow level 8700 feet. Mostly cloudy, with a high near 42. West wind around 18 mph, with gusts as high as 30 mph. Chance of precipitation is 70%.
Wednesday Night
A 30 percent chance of rain, mainly before 11pm. Snow level 8500 feet. Mostly cloudy, with a low around 34.
Thursday
A 20 percent chance of rain. Snow level 8300 feet. Partly sunny, with a high near 42.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 42.
Friday Night
Partly cloudy, with a low around 27.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Partly cloudy, with a low around 27.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles N Mackay ID
 44.22°N 113.62°W (Elev. 7218 ft)
1:03 am MST Dec 8, 2025
4am MST Dec 8, 2025-6pm MST Dec 14, 2025
 
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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