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

21°F

-6°C

Humidity 79%
Wind Speed N 0 MPH
Barometer 30.29 in (1025.74 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 18 Jan 11:05 PM MST
Extended Forecast for

11 Miles NNW Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 9. Wind chill values as low as -8. North wind 14 to 16 mph.

    Low: 9 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 21. Wind chill values as low as -7. West northwest wind 10 to 14 mph.

    High: 21 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 13. Wind chill values as low as -4. West wind 11 to 17 mph.

    Low: 13 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 21. Wind chill values as low as -3. West wind 14 to 17 mph, with gusts as high as 21 mph.

    High: 21 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10. West wind 15 to 17 mph, with gusts as high as 20 mph.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 21.

    High: 21 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 20.

    High: 20 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 9. Wind chill values as low as -8. North wind 14 to 16 mph.
M.L.King Day
Sunny, with a high near 21. Wind chill values as low as -7. West northwest wind 10 to 14 mph.
Monday Night
Mostly clear, with a low around 13. Wind chill values as low as -4. West wind 11 to 17 mph.
Tuesday
Mostly sunny, with a high near 21. Wind chill values as low as -3. West wind 14 to 17 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly clear, with a low around 10. West wind 15 to 17 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 21.
Wednesday Night
Partly cloudy, with a low around 10.
Thursday
Partly sunny, with a high near 20.
Thursday Night
Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 18.
Friday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 9.
Saturday
A 20 percent chance of snow. Partly sunny, with a high near 16.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 7.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 17.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Mackay ID
 44.06°N 113.71°W (Elev. 10755 ft)
10:31 pm MST Jan 18, 2026
11pm MST Jan 18, 2026-6pm MST Jan 25, 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