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

11°F

-12°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 30.25 in (1024.38 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Last update 21 Jan 04:55 AM MST
Extended Forecast for

21 Miles N Mackay ID

  • Today

    Today: Sunny, with a high near 28. West northwest wind 3 to 6 mph.

    High: 28 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 15. West southwest wind around 6 mph.

    Low: 15 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 28. West wind around 5 mph becoming calm  in the morning.

    High: 28 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. West wind 3 to 5 mph.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 21. North northwest wind 5 to 10 mph.

    High: 21 °F

    Sunny

  • Friday Night

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

    Low: 3 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 19.

    High: 19 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 25.

    High: 25 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 28. West northwest wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 15. West southwest wind around 6 mph.
Thursday
Mostly sunny, with a high near 28. West wind around 5 mph becoming calm in the morning.
Thursday Night
Partly cloudy, with a low around 11. West wind 3 to 5 mph.
Friday
Sunny, with a high near 21. North northwest wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 3.
Saturday
Sunny, with a high near 19.
Saturday Night
Mostly clear, with a low around 6.
Sunday
Sunny, with a high near 25.
Sunday Night
Mostly clear, with a low around 11.
Monday
Mostly sunny, with a high near 28.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles N Mackay ID
 44.22°N 113.62°W (Elev. 7218 ft)
4:31 am MST Jan 21, 2026
5am 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