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 84%
Wind Speed N 0 MPH
Barometer 30.33 in (1027.09 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Last update 19 Jan 12:55 AM MST
Extended Forecast for

9 Miles N Mackay ID

  • Overnight

    Overnight: Mostly clear, with a low around 9. Wind chill values as low as -9. Northwest wind around 17 mph, with gusts as high as 21 mph.

    Low: 9 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 23. Wind chill values as low as -8. West northwest wind 10 to 17 mph.

    High: 23 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 14. Wind chill values as low as -3. West wind 13 to 18 mph, with gusts as high as 21 mph.

    Low: 14 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 23. Wind chill values as low as -2. West wind 15 to 20 mph, with gusts as high as 23 mph.

    High: 23 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 11. West wind 15 to 18 mph, with gusts as high as 22 mph.

    Low: 11 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 22.

    High: 22 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 11.

    Low: 11 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 9. Wind chill values as low as -9. Northwest wind around 17 mph, with gusts as high as 21 mph.
M.L.King Day
Sunny, with a high near 23. Wind chill values as low as -8. West northwest wind 10 to 17 mph.
Monday Night
Mostly clear, with a low around 14. Wind chill values as low as -3. West wind 13 to 18 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 23. Wind chill values as low as -2. West wind 15 to 20 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 11. West wind 15 to 18 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 22.
Wednesday Night
Partly cloudy, with a low around 11.
Thursday
Mostly sunny, with a high near 22.
Thursday Night
Mostly cloudy, with a low around 12.
Friday
Mostly sunny, with a high near 20.
Friday Night
A 20 percent chance of snow. Partly cloudy, with a low around 10.
Saturday
A 20 percent chance of snow. Mostly sunny, with a high near 18.
Saturday Night
A 20 percent chance of snow. Partly cloudy, with a low around 8.
Sunday
A 20 percent chance of snow. Mostly sunny, with a high near 18.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles N Mackay ID
 44.05°N 113.62°W (Elev. 11401 ft)
10:31 pm MST Jan 18, 2026
1am MST Jan 19, 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