Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains tonight, crossing the Midwest and reaching the Gulf Coast Friday night. Dangerously cold temperatures will persist across the eastern U.S. into early February. There is increasing confidence for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

28°F

-2°C

Humidity 58%
Wind Speed N 0 MPH
Barometer 30.43 in (1030.48 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 29 Jan 10:20 AM MST
Extended Forecast for

18 Miles NNW Mackay ID

  • Today

    Today: A slight chance of snow between 2pm and 3pm.  Mostly cloudy, with a high near 16. Wind chill values as low as -2. West wind 11 to 13 mph.  Chance of precipitation is 20%.

    High: 16 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Tonight

    Tonight: Mostly cloudy, with a low around 10. Wind chill values as low as -6. West wind 11 to 14 mph.

    Low: 10 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 22. Wind chill values as low as -4. West wind 10 to 13 mph.

    High: 22 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14. Wind chill values as low as -1. Southwest wind 10 to 17 mph.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 25. West wind 10 to 17 mph.

    High: 25 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 26.

    High: 26 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of snow between 2pm and 3pm. Mostly cloudy, with a high near 16. Wind chill values as low as -2. West wind 11 to 13 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 10. Wind chill values as low as -6. West wind 11 to 14 mph.
Friday
Mostly cloudy, with a high near 22. Wind chill values as low as -4. West wind 10 to 13 mph.
Friday Night
Mostly cloudy, with a low around 14. Wind chill values as low as -1. Southwest wind 10 to 17 mph.
Saturday
Partly sunny, with a high near 25. West wind 10 to 17 mph.
Saturday Night
Mostly cloudy, with a low around 17.
Sunday
Partly sunny, with a high near 26.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 21.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Mostly sunny, with a high near 20.
Tuesday Night
Mostly clear, with a low around 12.
Wednesday
Mostly sunny, with a high near 25.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NNW Mackay ID
 44.14°N 113.79°W (Elev. 11106 ft)
4:31 am MST Jan 29, 2026
10am MST Jan 29, 2026-6pm MST Feb 4, 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