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

64°F

18°C

Humidity 48%
Wind Speed N 0 MPH
Barometer 30.17 in (1021.67 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 18 Aug 01:20 AM MDT
Extended Forecast for

24 Miles WNW Challis ID

  • Overnight

    Overnight: Mostly cloudy, with a low around 54. South southwest wind 3 to 5 mph.

    Low: 54 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 3pm and 5pm.  Mostly sunny, with a high near 70. Light and variable wind becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph.  Chance of precipitation is 20%.

    High: 70 °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 8 to 13 mph becoming light and variable. Winds could gust as high as 20 mph.

    Low: 52 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. South southwest wind 5 to 11 mph becoming west in the afternoon.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 55. West wind 5 to 9 mph becoming south after midnight.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • 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
Mostly cloudy, with a low around 54. South southwest wind 3 to 5 mph.
Tuesday
A slight chance of showers and thunderstorms between 3pm and 5pm. Mostly sunny, with a high near 70. Light and variable wind becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 22 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 8 to 13 mph becoming light and variable. Winds could gust as high as 20 mph.
Wednesday
Sunny, with a high near 72. South southwest wind 5 to 11 mph becoming west in the afternoon.
Wednesday Night
Mostly clear, with a low around 55. West wind 5 to 9 mph becoming south after midnight.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 59.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.
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 71.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 52.
Monday
A 20 percent chance of rain. Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
24 Miles WNW Challis ID
 44.63°N 114.67°W (Elev. 7523 ft)
12:31 am MDT Aug 18, 2026
1am MDT Aug 18, 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