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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

59°F

15°C

Humidity 33%
Wind Speed NNW 10 MPH
Barometer 30.03 in (1016.93 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 17 Jun 11:55 PM MDT
Extended Forecast for

23 Miles NW Mackay ID

  • Overnight

    Overnight: Mostly clear, with a low around 43. North northeast wind 5 to 8 mph becoming calm.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 50. West northwest wind 5 to 10 mph becoming light north after midnight.

    Low: 50 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 79. Light and variable wind becoming west 6 to 11 mph in the afternoon.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 53. West wind 5 to 10 mph becoming light southwest after midnight.

    Low: 53 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after noon. High near 67. Chance of precipitation is 90%.

    High: 67 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 43. North northeast wind 5 to 8 mph becoming calm.
Thursday
Sunny, with a high near 76. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 50. West northwest wind 5 to 10 mph becoming light north after midnight.
Juneteenth
Mostly sunny, with a high near 79. Light and variable wind becoming west 6 to 11 mph in the afternoon.
Friday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 53. West wind 5 to 10 mph becoming light southwest after midnight.
Saturday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 67. Chance of precipitation is 90%.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 45.
Sunday
Sunny, with a high near 71.
Sunday Night
Partly cloudy, with a low around 44.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 47.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
23 Miles NW Mackay ID
 44.17°N 113.88°W (Elev. 6821 ft)
Last Update:
11:30 pm MDT Jun 17, 2026
Forecast Valid:
12am MDT Jun 18, 2026-6pm MDT Jun 24, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation