Heavy Rain and Flash Flooding in the West; Heat Expands in the Central U.S.

Monsoonal moisture will produce showers and thunderstorms with heavy rain over parts of the Southwest, Great Basin, and Central Rockies through Monday. Flash flooding is possible, especially in and around burn scars and in areas of steep terrain. Heat will persist across the Central U.S. early this week, spreading into the Ohio Valley and Mid-Atlantic later this week. Read More >

Current conditions at

Challis - Challis Airport (KLLJ)

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

Clear

57°F

14°C

Humidity 24%
Wind Speed S 3 MPH
Barometer 30.05 in (1017.61 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 30 Aug 10:15 PM MDT
Extended Forecast for

11 Miles NNW Mackay ID

  • Tonight

    Tonight: Mostly clear, with a low around 33. West northwest wind around 9 mph becoming southwest after midnight.

    Low: 33 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 41. South wind 11 to 15 mph, with gusts as high as 20 mph.

    Low: 41 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm after noon.  Snow level 11900 feet rising to 12500 feet in the afternoon. Sunny through mid morning, then becoming mostly cloudy, with a high near 51. South southeast wind 16 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 60%.

    High: 51 °F

    Sunny then
    Showers
    Likely

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight.  Snow level 12400 feet lowering to 11600 feet after midnight . Mostly cloudy, with a low around 38. South wind 11 to 15 mph, with gusts as high as 22 mph.  Chance of precipitation is 60%.

    Low: 38 °F

    Showers
    Likely then
    Slight Chance
    Rain

  • Wednesday

    Wednesday: A slight chance of rain before 9am, then a slight chance of snow between 9am and noon.  Mostly sunny, with a high near 46. Breezy.  Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Sunny and
    Breezy

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 35. Breezy.

    Low: 35 °F

    Partly Cloudy
    and Breezy
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 33. West northwest wind around 9 mph becoming southwest after midnight.
Monday
Sunny, with a high near 54. Southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Monday Night
Increasing clouds, with a low around 41. South wind 11 to 15 mph, with gusts as high as 20 mph.
Tuesday
Showers likely and possibly a thunderstorm after noon. Snow level 11900 feet rising to 12500 feet in the afternoon. Sunny through mid morning, then becoming mostly cloudy, with a high near 51. South southeast wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Snow level 12400 feet lowering to 11600 feet after midnight . Mostly cloudy, with a low around 38. South wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Wednesday
A slight chance of rain before 9am, then a slight chance of snow between 9am and noon. Mostly sunny, with a high near 46. Breezy. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 35. Breezy.
Thursday
Mostly sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 35.
Friday
Sunny, with a high near 49. Breezy.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 50.
Saturday Night
A chance of rain and snow. Snow level 11800 feet. Partly cloudy, with a low around 39. Chance of precipitation is 40%.
Sunday
A 40 percent chance of rain and thunderstorms. Snow level 11700 feet. Partly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNW Mackay ID
 44.06°N 113.71°W (Elev. 10755 ft)
5:31 pm MDT Aug 30, 2026
10pm MDT Aug 30, 2026-6pm MDT Sep 6, 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