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

25°F

-4°C

Humidity 68%
Wind Speed N 0 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 18 Jan 08:05 PM MST
Extended Forecast for

17 Miles NNW Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 14. West wind 3 to 5 mph.

    Low: 14 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 31. West southwest wind around 6 mph becoming northwest in the afternoon.

    High: 31 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19. West wind 5 to 7 mph.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 33. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 33 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 16. West wind around 8 mph.

    Low: 16 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 32.

    High: 32 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 17.

    Low: 17 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 14. West wind 3 to 5 mph.
M.L.King Day
Sunny, with a high near 31. West southwest wind around 6 mph becoming northwest in the afternoon.
Monday Night
Mostly clear, with a low around 19. West wind 5 to 7 mph.
Tuesday
Sunny, with a high near 33. West northwest wind 7 to 10 mph, with gusts as high as 18 mph.
Tuesday Night
Mostly clear, with a low around 16. West wind around 8 mph.
Wednesday
Sunny, with a high near 32.
Wednesday Night
Partly cloudy, with a low around 17.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Partly cloudy, with a low around 17.
Friday
Mostly sunny, with a high near 30.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around 16.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 29.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 15.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 31.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NNW Mackay ID
 44.15°N 113.7°W (Elev. 7877 ft)
6:21 pm MST Jan 18, 2026
8pm MST Jan 18, 2026-6pm MST Jan 25, 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