Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

82°F

28°C

Humidity 9%
Wind Speed N 6 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 31 Aug 05:20 PM MDT
Extended Forecast for

Challis ID

  • Tonight

    Tonight: Partly cloudy, with a low around 49. North wind 5 to 7 mph becoming calm  after midnight.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 82. Light south wind becoming south southeast 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph.

    High: 82 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before midnight, then a chance of showers after 5am.  Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Southwest wind 5 to 9 mph becoming calm  after midnight.  Chance of precipitation is 50%.

    Low: 48 °F

    Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon.  Cloudy, then gradually becoming mostly sunny, with a high near 74. Light and variable wind becoming southwest 13 to 18 mph in the morning. Winds could gust as high as 26 mph.  Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. South wind 10 to 18 mph, with gusts as high as 26 mph.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after noon.  Partly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly after midnight.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Friday

    Friday: A chance of rain before noon, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 74. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly after midnight.  Partly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 49. North wind 5 to 7 mph becoming calm after midnight.
Tuesday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 82. Light south wind becoming south southeast 9 to 14 mph in the afternoon. Winds could gust as high as 22 mph.
Tuesday Night
A chance of showers and thunderstorms before midnight, then a chance of showers after 5am. Mostly cloudy, then gradually becoming mostly clear, with a low around 48. Southwest wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 50%.
Wednesday
A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon. Cloudy, then gradually becoming mostly sunny, with a high near 74. Light and variable wind becoming southwest 13 to 18 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 50%.
Wednesday Night
Mostly cloudy, with a low around 45. South wind 10 to 18 mph, with gusts as high as 26 mph.
Thursday
A 20 percent chance of showers after noon. Partly sunny, with a high near 70.
Thursday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 44.
Friday
A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of rain, mainly after midnight. Partly cloudy, with a low around 45.
Saturday
A 20 percent chance of rain. Mostly sunny, with a high near 77.
Saturday Night
A 40 percent chance of rain. Partly cloudy, with a low around 48.
Sunday
A 40 percent chance of rain. Partly sunny, with a high near 75.
Sunday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 47.
Labor Day
A 20 percent chance of rain and thunderstorms. Mostly sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
Challis ID
 44.51°N 114.22°W (Elev. 5151 ft)
5:31 pm MDT Aug 31, 2026
5pm MDT Aug 31, 2026-6pm MDT Sep 7, 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