Winter Storm in the Central Appalachians through the Northeast; Heavy Snow in the Great Basin and Rockies

A winter storm will impact the central Appalachians to the Northeast through the night. Accumulating snow is expected for interior New England and the northern Mid-Atlantic. Scattered showers and occasional thunderstorms will persist across Florida and the Southeast coast. Locally heavy mountain snow is expected in the Great Basin and Rockies over the next couple of days. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

Lat: 44.523°NLon: 114.21611°WElev: 5026.0ft.

Overcast

34°F

1°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 29.93 in (1013.55 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 02 Dec 05:05 PM MST
Extended Forecast for

12 Miles N Mackay ID

  • This Afternoon

    This Afternoon: A 40 percent chance of snow.  Mostly cloudy, with a steady temperature around 14. Wind chill values as low as zero. North northwest wind around 11 mph, with gusts as high as 18 mph.  Total daytime snow accumulation of 1 to 3 inches possible.

    High: 14 °F

    Chance Snow

  • Tonight

    Tonight: A 30 percent chance of snow, mainly before 8pm. The snow could be heavy at times.  Mostly cloudy, with a low around 7. Wind chill values as low as -10. Blustery, with a north wind 16 to 22 mph, with gusts as high as 29 mph.  New snow accumulation of around an inch possible.

    Low: 7 °F

    Heavy Snow
    and Blustery
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 16. Wind chill values as low as -10. West northwest wind 6 to 14 mph, with gusts as high as 18 mph.

    High: 16 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 10. Wind chill values as low as -5. West wind 6 to 13 mph.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after 11am.  Partly sunny, with a high near 18. West wind 10 to 14 mph.  Little or no snow accumulation expected.

    High: 18 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 30 percent chance of snow, mainly after 11pm.  Mostly cloudy, with a low around 15. New snow accumulation of less than a half inch possible.

    Low: 15 °F

    Chance Snow

  • Friday

    Friday: Snow likely, mainly after 11am.  Mostly cloudy, with a high near 23. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 23 °F

    Snow Likely

  • Friday Night

    Friday Night: Snow.  Low around 20. Breezy.  Chance of precipitation is 80%.

    Low: 20 °F

    Snow and
    Breezy

  • Saturday

    Saturday: Snow likely.  Mostly cloudy, with a high near 21. Breezy.  Chance of precipitation is 60%.

    High: 21 °F

    Snow Likely
    and Breezy

Detailed Forecast

This Afternoon
A 40 percent chance of snow. Mostly cloudy, with a steady temperature around 14. Wind chill values as low as zero. North northwest wind around 11 mph, with gusts as high as 18 mph. Total daytime snow accumulation of 1 to 3 inches possible.
Tonight
A 30 percent chance of snow, mainly before 8pm. The snow could be heavy at times. Mostly cloudy, with a low around 7. Wind chill values as low as -10. Blustery, with a north wind 16 to 22 mph, with gusts as high as 29 mph. New snow accumulation of around an inch possible.
Wednesday
Sunny, with a high near 16. Wind chill values as low as -10. West northwest wind 6 to 14 mph, with gusts as high as 18 mph.
Wednesday Night
Partly cloudy, with a low around 10. Wind chill values as low as -5. West wind 6 to 13 mph.
Thursday
A 30 percent chance of snow, mainly after 11am. Partly sunny, with a high near 18. West wind 10 to 14 mph. Little or no snow accumulation expected.
Thursday Night
A 30 percent chance of snow, mainly after 11pm. Mostly cloudy, with a low around 15. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 23. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Friday Night
Snow. Low around 20. Breezy. Chance of precipitation is 80%.
Saturday
Snow likely. Mostly cloudy, with a high near 21. Breezy. Chance of precipitation is 60%.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 14.
Sunday
A 30 percent chance of snow. Partly sunny, with a high near 21.
Sunday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 13.
Monday
A 20 percent chance of snow. Mostly sunny, with a high near 21.
Monday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 15.
Tuesday
A 40 percent chance of snow. Partly sunny, with a high near 25.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles N Mackay ID
 44.09°N 113.65°W (Elev. 10279 ft)
4:31 pm MST Dec 2, 2025
5pm MST Dec 2, 2025-6pm MST Dec 9, 2025
 
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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