National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Challis - Challis Airport (KLLJ)

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

Mostly Cloudy

36°F

2°C

Humidity 37%
Wind Speed S 4 MPH
Barometer 29.73 in (1006.77 mb)
Dewpoint 12°F (-11°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 16 Apr 02:05 AM MDT
Extended Forecast for

18 Miles NNW Mackay ID

  • Overnight

    Overnight: A 50 percent chance of snow showers before 4am. Cloudy, with a low around 3. Wind chill values as low as -15. Breezy, with a west wind around 26 mph, with gusts as high as 33 mph. Total nighttime snow accumulation of 4 to 6 inches possible.

    Low: 3 °F

    Chance Snow
    Showers and
    Breezy

  • Thursday

    Thursday: Snow showers likely after 9am. The snow could be heavy at times. Mostly cloudy and cold, with a high near 6. Wind chill values as low as -22. Windy, with a west wind 25 to 30 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.

    High: 6 °F

    Heavy Snow
    and Windy

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers before 9pm. Mostly cloudy, with a low around 2. Wind chill values as low as -23. Windy, with a northwest wind 23 to 30 mph, with gusts as high as 37 mph. New snow accumulation of less than one inch possible.

    Low: 2 °F

    Chance Snow
    Showers and
    Windy

  • Friday

    Friday: A 30 percent chance of snow showers after noon. Partly sunny, with a high near 14. Wind chill values as low as -20. Blustery, with a west northwest wind around 22 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.

    High: 14 °F

    Blustery.
    Mostly Sunny
    then Chance
    Snow Showers

  • Friday Night

    Friday Night: Partly cloudy, with a low around 7. Blustery, with a west wind 14 to 22 mph, with gusts as high as 28 mph.

    Low: 7 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 25.

    High: 25 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 17 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 33. Breezy.

    High: 33 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 50 percent chance of snow showers before 4am. Cloudy, with a low around 3. Wind chill values as low as -15. Breezy, with a west wind around 26 mph, with gusts as high as 33 mph. Total nighttime snow accumulation of 4 to 6 inches possible.
Thursday
Snow showers likely after 9am. The snow could be heavy at times. Mostly cloudy and cold, with a high near 6. Wind chill values as low as -22. Windy, with a west wind 25 to 30 mph, with gusts as high as 38 mph. Chance of precipitation is 70%. New snow accumulation of 2 to 4 inches possible.
Thursday Night
A 30 percent chance of snow showers before 9pm. Mostly cloudy, with a low around 2. Wind chill values as low as -23. Windy, with a northwest wind 23 to 30 mph, with gusts as high as 37 mph. New snow accumulation of less than one inch possible.
Friday
A 30 percent chance of snow showers after noon. Partly sunny, with a high near 14. Wind chill values as low as -20. Blustery, with a west northwest wind around 22 mph, with gusts as high as 28 mph. Little or no snow accumulation expected.
Friday Night
Partly cloudy, with a low around 7. Blustery, with a west wind 14 to 22 mph, with gusts as high as 28 mph.
Saturday
Mostly sunny, with a high near 25.
Saturday Night
Partly cloudy, with a low around 17.
Sunday
Mostly sunny, with a high near 33. Breezy.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 39. Breezy.
Monday Night
A 20 percent chance of snow. Partly cloudy, with a low around 28. Breezy.
Tuesday
A 30 percent chance of snow. Mostly sunny, with a high near 37. Breezy.
Tuesday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 24.
Wednesday
A 50 percent chance of snow. Partly sunny, with a high near 27.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
18 Miles NNW Mackay ID
 44.14°N 113.79°W (Elev. 11106 ft)
Last Update:
12:45 am MDT Apr 16, 2026
Forecast Valid:
2am MDT Apr 16, 2026-6pm MDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation