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

73°F

23°C

Humidity 29%
Wind Speed NE 3 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 19 Aug 11:35 AM MDT
Extended Forecast for

21 Miles N Mackay ID

  • Today

    Today: Sunny, with a high near 75. West northwest wind 6 to 10 mph.

    High: 75 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 54. West northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. West southwest wind 3 to 8 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Calm wind becoming south 5 to 8 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight.  Mostly cloudy, with a low around 57. Chance of precipitation is 60%.

    Low: 57 °F

    Showers
    Likely then
    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 73. Chance of precipitation is 70%.

    High: 73 °F

    Slight Chance
    Rain then
    Showers
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of rain before midnight.  Partly cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain
    then Partly
    Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny
    then Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 75. West northwest wind 6 to 10 mph.
Tonight
Mostly clear, with a low around 54. West northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 81. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 57. West southwest wind 3 to 8 mph.
Friday
Mostly sunny, with a high near 80. Calm wind becoming south 5 to 8 mph in the afternoon.
Friday Night
Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Saturday
A slight chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.
Saturday Night
A 30 percent chance of rain before midnight. Partly cloudy, with a low around 52.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 50.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 71.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 50.
Tuesday
Rain likely and possibly a thunderstorm. Partly sunny, with a high near 69. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles N Mackay ID
 44.22°N 113.62°W (Elev. 7218 ft)
11:31 am MDT Aug 19, 2026
11am 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