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

8°F

-13°C

Humidity 79%
Wind Speed SSE 3 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 3°F (-16°C)
Visibility 10.00 mi
Last update 21 Jan 08:55 AM MST
Extended Forecast for

9 Miles NNE Mackay ID

  • Today

    Today: Sunny, with a high near 26. Wind chill values as low as zero. West northwest wind 6 to 11 mph.

    High: 26 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 13. Wind chill values as low as -2. West wind 9 to 14 mph, with gusts as high as 18 mph.

    Low: 13 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 25. Wind chill values as low as -2. West northwest wind 6 to 14 mph, with gusts as high as 18 mph.

    High: 25 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 8. Wind chill values as low as -6. West wind 6 to 11 mph.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 16. West northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 16 °F

    Sunny

  • Friday Night

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

    Low: 2 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 15.

    High: 15 °F

    Sunny

  • Saturday Night

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

    Low: 5 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 19.

    High: 19 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 26. Wind chill values as low as zero. West northwest wind 6 to 11 mph.
Tonight
Partly cloudy, with a low around 13. Wind chill values as low as -2. West wind 9 to 14 mph, with gusts as high as 18 mph.
Thursday
Mostly sunny, with a high near 25. Wind chill values as low as -2. West northwest wind 6 to 14 mph, with gusts as high as 18 mph.
Thursday Night
Partly cloudy, with a low around 8. Wind chill values as low as -6. West wind 6 to 11 mph.
Friday
Sunny, with a high near 16. West northwest wind around 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 2.
Saturday
Sunny, with a high near 15.
Saturday Night
Mostly clear, with a low around 5.
Sunday
Sunny, with a high near 19.
Sunday Night
Mostly clear, with a low around 9.
Monday
Mostly sunny, with a high near 23.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Mostly sunny, with a high near 27.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNE Mackay ID
 44.04°N 113.52°W (Elev. 9600 ft)
4:31 am MST Jan 21, 2026
9am 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