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.

Partly Cloudy

30°F

-1°C

Humidity 80%
Wind Speed ESE 3 MPH
Barometer 30.16 in (1021.34 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 08 Dec 03:20 AM MST
Extended Forecast for

13 Miles NNW Mackay ID

  • Overnight

    Overnight: Partly cloudy, with a low around 14. Wind chill values as low as -1. West wind around 16 mph, with gusts as high as 26 mph.

    Low: 14 °F

    Partly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 24. Wind chill values as low as -1. West wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 24 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 40 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a temperature rising to around 26 by 3am. Breezy, with a west wind 15 to 22 mph, with gusts as high as 37 mph.  New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Chance Snow
    and Breezy

  • Tuesday

    Tuesday: Snow likely.  Mostly cloudy, with a high near 27. Breezy, with a west wind 17 to 22 mph, with gusts as high as 39 mph.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 27 °F

    Snow Likely
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 11pm.  Cloudy, with a low around 24. West wind 14 to 21 mph, with gusts as high as 37 mph.  Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F

    Snow Likely

  • Wednesday

    Wednesday: Snow likely, mainly before 11am.  Mostly cloudy, with a high near 30. Breezy.  Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 30 °F

    Snow Likely
    and Breezy
    then Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 26. Breezy.  New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance Snow
    and Breezy

  • Thursday

    Thursday: A 20 percent chance of snow before 11am.  Partly sunny, with a high near 30.

    High: 30 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 22.

    Low: 22 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 14. Wind chill values as low as -1. West wind around 16 mph, with gusts as high as 26 mph.
Monday
Increasing clouds, with a high near 24. Wind chill values as low as -1. West wind 13 to 15 mph, with gusts as high as 23 mph.
Monday Night
A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a temperature rising to around 26 by 3am. Breezy, with a west wind 15 to 22 mph, with gusts as high as 37 mph. New snow accumulation of less than a half inch possible.
Tuesday
Snow likely. Mostly cloudy, with a high near 27. Breezy, with a west wind 17 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Tuesday Night
Snow likely, mainly after 11pm. Cloudy, with a low around 24. West wind 14 to 21 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Wednesday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 30. Breezy. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 26. Breezy. New snow accumulation of less than a half inch possible.
Thursday
A 20 percent chance of snow before 11am. Partly sunny, with a high near 30.
Thursday Night
Mostly cloudy, with a low around 22.
Friday
Mostly sunny, with a high near 30.
Friday Night
Partly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 29.
Saturday Night
Partly cloudy, with a low around 20.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNW Mackay ID
 44.08°N 113.71°W (Elev. 10135 ft)
1:03 am MST Dec 8, 2025
3am 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