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.

Overcast

37°F

3°C

Humidity 64%
Wind Speed NNW 5 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 07 Dec 08:20 PM MST
Extended Forecast for

11 Miles NNW Mackay ID

  • Tonight

    Tonight: A 20 percent chance of snow before 11pm.  Mostly cloudy, with a low around 14. Wind chill values as low as -3. West wind 14 to 21 mph, with gusts as high as 24 mph.

    Low: 14 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 22. Wind chill values as low as -3. West southwest wind 11 to 20 mph, with gusts as high as 23 mph.

    High: 22 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of snow.  Mostly cloudy, with a temperature rising to around 27 by 5am. Breezy, with a west wind 15 to 20 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 31 mph.  New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow
    and Breezy

  • Tuesday

    Tuesday: Snow likely.  Mostly cloudy, with a high near 26. Breezy, with a west wind 17 to 26 mph, with gusts as high as 34 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 26 °F

    Snow Likely
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow.  Low around 23. Breezy, with a west wind 15 to 20 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 36 mph.  Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    Low: 23 °F

    Snow and
    Breezy

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times.  High near 28. Breezy.  Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

    High: 28 °F

    Heavy Snow
    and Breezy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow.  Mostly cloudy, with a low around 26. Windy.  New snow accumulation of 1 to 2 inches possible.

    Low: 26 °F

    Chance Snow
    and Windy

  • Thursday

    Thursday: A 40 percent chance of snow.  Mostly cloudy, with a high near 27. Breezy.

    High: 27 °F

    Chance Snow
    and Breezy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 14. Wind chill values as low as -3. West wind 14 to 21 mph, with gusts as high as 24 mph.
Monday
Partly sunny, with a high near 22. Wind chill values as low as -3. West southwest wind 11 to 20 mph, with gusts as high as 23 mph.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a temperature rising to around 27 by 5am. Breezy, with a west wind 15 to 20 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 31 mph. New snow accumulation of less than a half inch possible.
Tuesday
Snow likely. Mostly cloudy, with a high near 26. Breezy, with a west wind 17 to 26 mph, with gusts as high as 34 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow. Low around 23. Breezy, with a west wind 15 to 20 mph increasing to 21 to 26 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 28. Breezy. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.
Wednesday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 26. Windy. New snow accumulation of 1 to 2 inches possible.
Thursday
A 40 percent chance of snow. Mostly cloudy, with a high near 27. Breezy.
Thursday Night
Mostly cloudy, with a low around 23.
Friday
Partly sunny, with a high near 25.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 25.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Mostly sunny, with a high near 24.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Mackay ID
 44.06°N 113.68°W (Elev. 11001 ft)
4:31 pm MST Dec 7, 2025
8pm MST Dec 7, 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