Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

54°F

12°C

Humidity 50%
Wind Speed SW 4 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 19 Aug 05:05 AM MDT
Extended Forecast for

18 Miles ENE Mackay ID

  • Today

    Today: Sunny, with a high near 80. West wind around 6 mph becoming light and variable.

    High: 80 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 59. West northwest wind 3 to 6 mph.

    Low: 59 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Light and variable wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. West wind around 6 mph.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 84. North northwest wind 5 to 8 mph becoming south southeast in the afternoon.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight.  Mostly cloudy, with a low around 62. Chance of precipitation is 50%.

    Low: 62 °F

    Chance
    Showers then
    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain, then a chance of showers and thunderstorms after noon.  Mostly cloudy, with a high near 77. Chance of precipitation is 50%.

    High: 77 °F

    Slight Chance
    Rain then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight.  Mostly cloudy, with a low around 57.

    Low: 57 °F

    Chance Rain
    then Mostly
    Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 76.

    High: 76 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 80. West wind around 6 mph becoming light and variable.
Tonight
Mostly clear, with a low around 59. West northwest wind 3 to 6 mph.
Thursday
Sunny, with a high near 84. Light and variable wind becoming south southwest 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 62. West wind around 6 mph.
Friday
Mostly sunny, with a high near 84. North northwest wind 5 to 8 mph becoming south southeast in the afternoon.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 62. Chance of precipitation is 50%.
Saturday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 77. Chance of precipitation is 50%.
Saturday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 57.
Sunday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 55.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Monday Night
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 56.
Tuesday
A 50 percent chance of rain and thunderstorms. Partly sunny, with a high near 73.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles ENE Mackay ID
 44.03°N 113.31°W (Elev. 6512 ft)
2:31 am MDT Aug 19, 2026
5am MDT Aug 19, 2026-6pm MDT Aug 25, 2026
 
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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