Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase 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.

Partly Cloudy

18°F

-8°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 30.4 in (1029.46 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 29 Jan 03:55 AM MST
Extended Forecast for

16 Miles NNW Mackay ID

  • Today

    Today: A slight chance of snow between 2pm and 3pm.  Mostly cloudy, with a high near 18. Wind chill values as low as -6. West northwest wind 10 to 13 mph.  Chance of precipitation is 20%.

    High: 18 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Tonight

    Tonight: Mostly cloudy, with a low around 12. Wind chill values as low as -2. Northwest wind around 11 mph.

    Low: 12 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 25. Wind chill values as low as -1. West wind 9 to 11 mph.

    High: 25 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 17. West southwest wind 9 to 14 mph, with gusts as high as 18 mph.

    Low: 17 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 27. West wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 27 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of snow between 2pm and 3pm. Mostly cloudy, with a high near 18. Wind chill values as low as -6. West northwest wind 10 to 13 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy, with a low around 12. Wind chill values as low as -2. Northwest wind around 11 mph.
Friday
Mostly cloudy, with a high near 25. Wind chill values as low as -1. West wind 9 to 11 mph.
Friday Night
Mostly cloudy, with a low around 17. West southwest wind 9 to 14 mph, with gusts as high as 18 mph.
Saturday
Partly sunny, with a high near 27. West wind 10 to 15 mph, with gusts as high as 20 mph.
Saturday Night
Mostly cloudy, with a low around 19.
Sunday
Partly sunny, with a high near 28.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
Mostly sunny, with a high near 23.
Monday Night
Partly cloudy, with a low around 14.
Tuesday
Mostly sunny, with a high near 23.
Tuesday Night
Mostly clear, with a low around 14.
Wednesday
Mostly sunny, with a high near 27.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NNW Mackay ID
 44.1°N 113.78°W (Elev. 10531 ft)
1:35 am MST Jan 29, 2026
4am MST Jan 29, 2026-6pm MST Feb 4, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database