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

9°F

-13°C

Humidity 78%
Wind Speed E 3 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 21 Jan 06:00 AM MST
Extended Forecast for

7 Miles NNE Mackay ID

  • Today

    Today: Sunny, with a high near 27. Wind chill values as low as -3. West northwest wind 7 to 15 mph.

    High: 27 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 13. Wind chill values as low as -3. West northwest wind 10 to 15 mph.

    Low: 13 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 22. Wind chill values as low as -1. West northwest wind 6 to 15 mph.

    High: 22 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 8. Wind chill values as low as -7. West wind 7 to 14 mph.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 14. West northwest wind 14 to 16 mph, with gusts as high as 22 mph.

    High: 14 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 2. Blustery.

    Low: 2 °F

    Mostly Clear
    and Blustery

  • Saturday

    Saturday: Sunny, with a high near 12. Blustery.

    High: 12 °F

    Sunny and
    Blustery then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 17.

    High: 17 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 27. Wind chill values as low as -3. West northwest wind 7 to 15 mph.
Tonight
Partly cloudy, with a low around 13. Wind chill values as low as -3. West northwest wind 10 to 15 mph.
Thursday
Mostly sunny, with a high near 22. Wind chill values as low as -1. West northwest wind 6 to 15 mph.
Thursday Night
Partly cloudy, with a low around 8. Wind chill values as low as -7. West wind 7 to 14 mph.
Friday
Sunny, with a high near 14. West northwest wind 14 to 16 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 2. Blustery.
Saturday
Sunny, with a high near 12. Blustery.
Saturday Night
Mostly clear, with a low around 5.
Sunday
Sunny, with a high near 17.
Sunday Night
Partly cloudy, with a low around 8.
Monday
Mostly sunny, with a high near 20.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Mostly sunny, with a high near 25.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NNE Mackay ID
 43.99°N 113.55°W (Elev. 9961 ft)
4:31 am MST Jan 21, 2026
6am 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