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

23°F

-5°C

Humidity 73%
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 08:35 PM MST
Extended Forecast for

7 Miles NE Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 12. Wind chill values as low as -5. North northwest wind 10 to 16 mph, with gusts as high as 23 mph.

    Low: 12 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 26. Wind chill values as low as -4. Northwest wind 9 to 15 mph, with gusts as high as 22 mph.

    High: 26 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 15. Wind chill values as low as zero. West wind 10 to 15 mph, with gusts as high as 22 mph.

    Low: 15 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 27. West northwest wind 13 to 15 mph, with gusts as high as 23 mph.

    High: 27 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 13. West northwest wind 13 to 15 mph, with gusts as high as 23 mph.

    Low: 13 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 26.

    High: 26 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 13.

    Low: 13 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 26.

    High: 26 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 12. Wind chill values as low as -5. North northwest wind 10 to 16 mph, with gusts as high as 23 mph.
M.L.King Day
Sunny, with a high near 26. Wind chill values as low as -4. Northwest wind 9 to 15 mph, with gusts as high as 22 mph.
Monday Night
Mostly clear, with a low around 15. Wind chill values as low as zero. West wind 10 to 15 mph, with gusts as high as 22 mph.
Tuesday
Mostly sunny, with a high near 27. West northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 13. West northwest wind 13 to 15 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 26.
Wednesday Night
Partly cloudy, with a low around 13.
Thursday
Mostly sunny, with a high near 26.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
Mostly sunny, with a high near 24.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around 11.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 22.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 10.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 23.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NE Mackay ID
 43.99°N 113.52°W (Elev. 9157 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

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Hourly Weather Forecast

National Digital Forecast Database