Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. 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 SW 3 MPH
Barometer 30.27 in (1025.06 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 19 Jan 05:35 PM MST
Extended Forecast for

21 Miles NNW Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 13. Wind chill values as low as -1. West northwest wind 9 to 13 mph.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 22. Wind chill values as low as zero. West northwest wind 10 to 13 mph.

    High: 22 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10. Wind chill values as low as -4. West wind around 11 mph.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 21. Wind chill values as low as -4. West wind 8 to 13 mph.

    High: 21 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11. West southwest wind 8 to 10 mph.

    Low: 11 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 21.

    High: 21 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 15.

    High: 15 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 5.

    Low: 5 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 13. Wind chill values as low as -1. West northwest wind 9 to 13 mph.
Tuesday
Mostly sunny, with a high near 22. Wind chill values as low as zero. West northwest wind 10 to 13 mph.
Tuesday Night
Mostly clear, with a low around 10. Wind chill values as low as -4. West wind around 11 mph.
Wednesday
Sunny, with a high near 21. Wind chill values as low as -4. West wind 8 to 13 mph.
Wednesday Night
Partly cloudy, with a low around 11. West southwest wind 8 to 10 mph.
Thursday
Mostly sunny, with a high near 21.
Thursday Night
Mostly cloudy, with a low around 8.
Friday
Mostly sunny, with a high near 15.
Friday Night
Mostly clear, with a low around 5.
Saturday
Sunny, with a high near 18.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 14.
Monday
Mostly sunny, with a high near 23.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NNW Mackay ID
 44.18°N 113.79°W (Elev. 10712 ft)
4:31 pm MST Jan 19, 2026
5pm MST Jan 19, 2026-6pm MST Jan 26, 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