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.

Partly Cloudy

63°F

17°C

Humidity 51%
Wind Speed N 0 MPH
Barometer 30.18 in (1022.01 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 18 Aug 03:35 AM MDT
Extended Forecast for

21 Miles E Clayton ID

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 57. West southwest wind around 5 mph becoming south.

    Low: 57 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms before 3pm, then a slight chance of rain between 3pm and 5pm.  Mostly sunny, with a high near 74. South wind 5 to 14 mph becoming west northwest in the morning. Winds could gust as high as 23 mph.  Chance of precipitation is 20%.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before 7pm.  Mostly clear, with a low around 52. West northwest wind 9 to 14 mph becoming light northwest. Winds could gust as high as 22 mph.

    Low: 52 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 76. West wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 76 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. West wind 6 to 11 mph becoming light and variable. Winds could gust as high as 20 mph.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of rain before midnight.  Mostly cloudy, with a low around 59.

    Low: 59 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 57. West southwest wind around 5 mph becoming south.
Tuesday
A slight chance of showers and thunderstorms before 3pm, then a slight chance of rain between 3pm and 5pm. Mostly sunny, with a high near 74. South wind 5 to 14 mph becoming west northwest in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Tuesday Night
A 20 percent chance of rain before 7pm. Mostly clear, with a low around 52. West northwest wind 9 to 14 mph becoming light northwest. Winds could gust as high as 22 mph.
Wednesday
Sunny, with a high near 76. West wind 5 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 54. West wind 6 to 11 mph becoming light and variable. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 81.
Thursday Night
Partly cloudy, with a low around 58.
Friday
Mostly sunny, with a high near 81.
Friday Night
A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 59.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 76.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
A 20 percent chance of rain. Mostly sunny, with a high near 73.
Sunday Night
Partly cloudy, with a low around 53.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
21 Miles E Clayton ID
 44.21°N 113.98°W (Elev. 7999 ft)
12:31 am MDT Aug 18, 2026
3am MDT Aug 18, 2026-6pm MDT Aug 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database