National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Winter Storm Bringing Widespread Hazardous Weather to the Eastern U.S.

A rapidly-intensifying winter storm continues to bring heavy snow, high winds, and blizzard conditions over the Upper Midwest and Great Lakes through today. An Arctic front will lead in a period of gusty to high winds and sharply colder temperatures over the entire eastern U.S. Heavy lake effect snow is then expected from Lakes Erie and Ontario through New Year's Day. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

22°F

-6°C

Humidity 67%
Wind Speed N 0 MPH
Barometer 30.53 in (1033.86 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Last update 29 Dec 05:55 PM MST
Extended Forecast for

9 Miles NNW Mackay ID

  • Tonight

    Tonight: Partly cloudy, with a low around 15. West northwest wind 6 to 10 mph.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 28. West northwest wind 5 to 9 mph becoming light in the afternoon.

    High: 28 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 19. West wind 6 to 10 mph.

    Low: 19 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 26. West wind 6 to 10 mph.

    High: 26 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 20. West wind 7 to 10 mph.

    Low: 20 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 40 percent chance of snow. Cloudy, with a high near 23. New snow accumulation of less than a half inch possible.

    High: 23 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 18. New snow accumulation of less than a half inch possible.

    Low: 18 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 23.

    High: 23 °F

    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 19.

    Low: 19 °F

    Chance Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 15. West northwest wind 6 to 10 mph.
Tuesday
Mostly sunny, with a high near 28. West northwest wind 5 to 9 mph becoming light in the afternoon.
Tuesday Night
Mostly clear, with a low around 19. West wind 6 to 10 mph.
Wednesday
Partly sunny, with a high near 26. West wind 6 to 10 mph.
Wednesday Night
Mostly cloudy, with a low around 20. West wind 7 to 10 mph.
New Year's Day
A 40 percent chance of snow. Cloudy, with a high near 23. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 18. New snow accumulation of less than a half inch possible.
Friday
A 30 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 23.
Friday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 19.
Saturday
A 50 percent chance of snow. Mostly cloudy, with a high near 20.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 13.
Sunday
A 40 percent chance of snow. Partly sunny, with a high near 17.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 11.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 18.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Mackay ID
 44.05°N 113.65°W (Elev. 11194 ft)
Last Update:
4:31 pm MST Dec 29, 2025
Forecast Valid:
6pm MST Dec 29, 2025-6pm MST Jan 5, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation