Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

75°F

24°C

Humidity 36%
Wind Speed N 0 MPH
Barometer 30.14 in (1020.66 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 17 Aug 08:20 PM MDT
Extended Forecast for

21 Miles NW Clayton ID

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. West southwest wind 3 to 5 mph.

    Low: 48 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 69. Light west wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph.

    High: 69 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. West wind 5 to 9 mph becoming light  after midnight. Winds could gust as high as 21 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 71. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 71 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 50. West wind 5 to 9 mph becoming light. Winds could gust as high as 18 mph.

    Low: 50 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 75.

    High: 75 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A 20 percent chance of rain before midnight.  Mostly cloudy, with a low around 54.

    Low: 54 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. West southwest wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 69. Light west wind becoming west southwest 6 to 11 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 47. West wind 5 to 9 mph becoming light after midnight. Winds could gust as high as 21 mph.
Wednesday
Sunny, with a high near 71. Light southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Wednesday Night
Mostly clear, with a low around 50. West wind 5 to 9 mph becoming light. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 54.
Friday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 75.
Friday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 54.
Saturday
A slight chance of rain, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 49.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NW Clayton ID
 44.48°N 114.67°W (Elev. 8009 ft)
5:31 pm MDT Aug 17, 2026
8pm MDT Aug 17, 2026-6pm MDT Aug 24, 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