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

16°F

-9°C

Humidity 85%
Wind Speed SW 4 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 19 Jan 01:20 AM MST
Extended Forecast for

14 Miles NNW Mackay ID

  • Overnight

    Overnight: Mostly clear, with a low around 8. Wind chill values as low as -7. North wind around 11 mph.

    Low: 8 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 21. Wind chill values as low as -6. Northwest wind 8 to 10 mph.

    High: 21 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 12. Wind chill values as low as -1. West wind 9 to 13 mph.

    Low: 12 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23. Wind chill values as low as -2. West wind around 14 mph, with gusts as high as 21 mph.

    High: 23 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 10. West wind around 14 mph, with gusts as high as 20 mph.

    Low: 10 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 22.

    High: 22 °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 22.

    High: 22 °F

    Partly Sunny

  • Thursday Night

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

    Low: 11 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 8. Wind chill values as low as -7. North wind around 11 mph.
M.L.King Day
Sunny, with a high near 21. Wind chill values as low as -6. Northwest wind 8 to 10 mph.
Monday Night
Mostly clear, with a low around 12. Wind chill values as low as -1. West wind 9 to 13 mph.
Tuesday
Mostly sunny, with a high near 23. Wind chill values as low as -2. West wind around 14 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 10. West wind around 14 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 22.
Wednesday Night
Partly cloudy, with a low around 10.
Thursday
Partly sunny, with a high near 22.
Thursday Night
Mostly cloudy, with a low around 11.
Friday
Partly sunny, with a high near 20.
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 18.
Saturday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 7.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 18.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles NNW Mackay ID
 44.08°N 113.74°W (Elev. 10069 ft)
10:31 pm MST Jan 18, 2026
1am MST Jan 19, 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