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

12°F

-11°C

Humidity 78%
Wind Speed N 0 MPH
Barometer 30.62 in (1036.91 mb)
Dewpoint 7°F (-14°C)
Visibility 10.00 mi
Last update 29 Dec 07:35 AM MST
Extended Forecast for

19 Miles NE Mackay ID

  • Today

    Today: Sunny, with a high near 23. West northwest wind around 5 mph becoming calm in the morning.

    High: 23 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 17. Northwest wind 3 to 5 mph.

    Low: 17 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 29. Northwest wind around 5 mph becoming calm in the morning.

    High: 29 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 20. Calm wind becoming west northwest around 5 mph in the evening.

    Low: 20 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 32. West northwest wind around 6 mph becoming light and variable in the morning.

    High: 32 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 20 percent chance of snow. Mostly cloudy, with a high near 30.

    High: 30 °F

    Slight Chance
    Snow

  • Thursday Night

    Thursday Night: A 20 percent chance of snow. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Slight Chance
    Snow

  • Friday

    Friday: A 30 percent chance of snow. Partly sunny, with a high near 31.

    High: 31 °F

    Chance Snow

Detailed Forecast

Today
Sunny, with a high near 23. West northwest wind around 5 mph becoming calm in the morning.
Tonight
Partly cloudy, with a low around 17. Northwest wind 3 to 5 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 29. Northwest wind around 5 mph becoming calm in the morning.
Tuesday Night
Mostly clear, with a low around 20. Calm wind becoming west northwest around 5 mph in the evening.
Wednesday
Mostly sunny, with a high near 32. West northwest wind around 6 mph becoming light and variable in the morning.
Wednesday Night
Mostly cloudy, with a low around 24.
New Year's Day
A 20 percent chance of snow. Mostly cloudy, with a high near 30.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 24.
Friday
A 30 percent chance of snow. Partly sunny, with a high near 31.
Friday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 25.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 29.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 21.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
19 Miles NE Mackay ID
 44.1°N 113.32°W (Elev. 8199 ft)
Last Update:
4:31 am MST Dec 29, 2025
Forecast Valid:
7am MST Dec 29, 2025-6pm MST Jan 4, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation