Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

28°F

-2°C

Humidity 42%
Wind Speed N 3 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 21 Jan 01:00 PM MST
Extended Forecast for

18 Miles NNW Mackay ID

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 19. West northwest wind around 9 mph.

    High: 19 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 8. Wind chill values as low as -8. West wind 10 to 14 mph.

    Low: 8 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 17. Wind chill values as low as -7. West wind 8 to 14 mph.

    High: 17 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 4. Wind chill values as low as -12. West wind 8 to 11 mph.

    Low: 4 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near 9. West wind 14 to 17 mph, with gusts as high as 24 mph.

    High: 9 °F

    Cold

  • Friday Night

    Friday Night: Mostly clear, with a low around -3.

    Low: -3 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and cold, with a high near 7.

    High: 7 °F

    Cold

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 0.

    Low: 0 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 13.

    High: 13 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 19. West northwest wind around 9 mph.
Tonight
Partly cloudy, with a low around 8. Wind chill values as low as -8. West wind 10 to 14 mph.
Thursday
Mostly sunny, with a high near 17. Wind chill values as low as -7. West wind 8 to 14 mph.
Thursday Night
Mostly cloudy, with a low around 4. Wind chill values as low as -12. West wind 8 to 11 mph.
Friday
Mostly sunny and cold, with a high near 9. West wind 14 to 17 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around -3.
Saturday
Sunny and cold, with a high near 7.
Saturday Night
Mostly clear, with a low around 0.
Sunday
Mostly sunny, with a high near 13.
Sunday Night
Partly cloudy, with a low around 4.
Monday
Mostly sunny, with a high near 16.
Monday Night
Mostly cloudy, with a low around 9.
Tuesday
Partly sunny, with a high near 19.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NNW Mackay ID
 44.14°N 113.79°W (Elev. 11106 ft)
10:31 am MST Jan 21, 2026
1pm MST Jan 21, 2026-6pm MST Jan 27, 2026
 
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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