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

Heavy Lake Effect Snow Downwind of Lakes Erie and Ontario; Fire Weather Concerns in the Southern Plains and Southeast

A multi-day heavy lake effect snow event is expected downwind of Lakes Erie and Ontario through New Year's Day. There is increasing confidence in snow squalls causing bursts of snow & gusty winds on New Year's Eve. Elevated fire weather conditions will continue today over parts of the Southern Plains and across much of the Southeast U.S. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

16°F

-9°C

Humidity 78%
Wind Speed N 3 MPH
Barometer 30.55 in (1034.54 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Last update 30 Dec 09:05 AM MST
Extended Forecast for

22 Miles NNW Mackay ID

  • Today

    Today: Sunny, with a high near 33. West wind 3 to 7 mph.

    High: 33 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 25. West southwest wind 8 to 10 mph.

    Low: 25 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 30. West southwest wind 6 to 11 mph.

    High: 30 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 27. Southwest wind 9 to 14 mph.

    Low: 27 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A 50 percent chance of snow. Mostly cloudy, with a high near 27. West wind 8 to 14 mph. New snow accumulation of less than a half inch possible.

    High: 27 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 23. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow, mainly before 11am. Mostly cloudy, with a high near 27. Little or no snow accumulation expected.

    High: 27 °F

    Chance Snow

  • Friday Night

    Friday Night: A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 24. Breezy.

    Low: 24 °F

    Chance Snow
    and Breezy

  • Saturday

    Saturday: Snow likely, mainly before 11am. Mostly cloudy, with a high near 27. Breezy. Chance of precipitation is 60%.

    High: 27 °F

    Snow Likely
    and Breezy

Detailed Forecast

Today
Sunny, with a high near 33. West wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 25. West southwest wind 8 to 10 mph.
Wednesday
Partly sunny, with a high near 30. West southwest wind 6 to 11 mph.
Wednesday Night
Mostly cloudy, with a low around 27. Southwest wind 9 to 14 mph.
New Year's Day
A 50 percent chance of snow. Mostly cloudy, with a high near 27. West wind 8 to 14 mph. New snow accumulation of less than a half inch possible.
Thursday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 23. 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 27. Little or no snow accumulation expected.
Friday Night
A 40 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 24. Breezy.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 27. Breezy. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 15.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 20.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 13.
Monday
A 30 percent chance of snow. Partly sunny, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
22 Miles NNW Mackay ID
 44.21°N 113.77°W (Elev. 10039 ft)
Last Update:
4:31 am MST Dec 30, 2025
Forecast Valid:
9am MST Dec 30, 2025-6pm MST Jan 5, 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