Heavy Rain in the Southern U.S.; Winter Storm to Impact the Northern Mid-Atlantic and Interior Northeast

A storm system stretching from the Tennessee Valley to the Gulf Coast will bring a variety of hazards to the Eastern U.S. through Tuesday. On the south side of the system, heavy rain and thunderstorms will persist across the Southern U.S. Further north, a wintry precipitation mix is expected from the Central Appalachians to the interior Northeast through Tuesday. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Overcast

28°F

-2°C

Humidity 62%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Last update 02 Dec 02:55 AM MST
Extended Forecast for

21 Miles NNW Mackay ID

  • Overnight

    Overnight: A 20 percent chance of snow showers after 4am.  Cloudy, with a low around 16. West wind around 13 mph.

    Low: 16 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: Snow showers, mainly between 11am and 5pm. The snow could be heavy at times.  Temperature falling to around 8 by 4pm. Wind chill values as low as -8. West northwest wind 11 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 17 °F

    Heavy Snow

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow showers, mainly before 10pm.  Mostly cloudy, with a temperature falling to near 7 by 8pm, then rising to around 13 during the remainder of the night. Wind chill values as low as -12. North wind 11 to 18 mph, with gusts as high as 25 mph.  New snow accumulation of less than a half inch possible.

    Low: 7 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 16. Wind chill values as low as -2. North northeast wind 6 to 10 mph becoming west in the morning.

    High: 16 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 10. West wind 6 to 10 mph.

    Low: 10 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers, mainly after 11pm.  Mostly cloudy, with a low around 16. Little or no snow accumulation expected.

    Low: 16 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 50 percent chance of snow, mainly after 11am.  Mostly cloudy, with a high near 23.

    High: 23 °F

    Chance Snow

  • Friday Night

    Friday Night: Snow likely.  Mostly cloudy, with a low around 19. Chance of precipitation is 70%.

    Low: 19 °F

    Snow Likely

Detailed Forecast

Overnight
A 20 percent chance of snow showers after 4am. Cloudy, with a low around 16. West wind around 13 mph.
Tuesday
Snow showers, mainly between 11am and 5pm. The snow could be heavy at times. Temperature falling to around 8 by 4pm. Wind chill values as low as -8. West northwest wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Tuesday Night
A 30 percent chance of snow showers, mainly before 10pm. Mostly cloudy, with a temperature falling to near 7 by 8pm, then rising to around 13 during the remainder of the night. Wind chill values as low as -12. North wind 11 to 18 mph, with gusts as high as 25 mph. New snow accumulation of less than a half inch possible.
Wednesday
Sunny, with a high near 16. Wind chill values as low as -2. North northeast wind 6 to 10 mph becoming west in the morning.
Wednesday Night
Partly cloudy, with a low around 10. West wind 6 to 10 mph.
Thursday
Partly sunny, with a high near 23.
Thursday Night
A 30 percent chance of snow showers, mainly after 11pm. Mostly cloudy, with a low around 16. Little or no snow accumulation expected.
Friday
A 50 percent chance of snow, mainly after 11am. Mostly cloudy, with a high near 23.
Friday Night
Snow likely. Mostly cloudy, with a low around 19. Chance of precipitation is 70%.
Saturday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 20. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 14.
Sunday
A 20 percent chance of snow. Mostly cloudy, with a high near 20.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 12.
Monday
Mostly sunny, with a high near 19.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NNW Mackay ID
 44.18°N 113.79°W (Elev. 10712 ft)
2:56 am MST Dec 2, 2025
3am MST Dec 2, 2025-6pm MST Dec 8, 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