Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

Lat: 45.11667°NLon: 113.88333°WElev: 4045.0ft.

Partly Cloudy

66°F

19°C

Humidity 55%
Wind Speed S 3 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 06 Sep 12:35 PM MDT
Extended Forecast for

31 Miles NW Challis ID

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm.  Partly sunny, with a high near 61. South southwest wind 6 to 9 mph.  Chance of precipitation is 60%.

    High: 61 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am.  Snow level 11300 feet lowering to 9000 feet after midnight . Low around 42. South southwest wind 6 to 11 mph becoming west northwest in the evening. Winds could gust as high as 23 mph.  Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 42 °F

    Chance
    Showers then
    Showers

  • Labor Day

    Labor Day: A slight chance of rain before 8am, then a chance of rain and snow between 8am and 10am, then a slight chance of rain after 10am. Some thunder is also possible.  Snow level 8300 feet rising to 9300 feet in the afternoon. Partly sunny, with a high near 51. Southwest wind 11 to 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 51 °F

    Chance
    Rain/Snow
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. West wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 59. South southwest wind 5 to 7 mph becoming west in the afternoon.

    High: 59 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 61. South southwest wind 6 to 9 mph. Chance of precipitation is 60%.
Tonight
A chance of showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Snow level 11300 feet lowering to 9000 feet after midnight . Low around 42. South southwest wind 6 to 11 mph becoming west northwest in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Labor Day
A slight chance of rain before 8am, then a chance of rain and snow between 8am and 10am, then a slight chance of rain after 10am. Some thunder is also possible. Snow level 8300 feet rising to 9300 feet in the afternoon. Partly sunny, with a high near 51. Southwest wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday Night
Mostly clear, with a low around 35. West wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 20 mph.
Tuesday
Sunny, with a high near 59. South southwest wind 5 to 7 mph becoming west in the afternoon.
Tuesday Night
Mostly clear, with a low around 37.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 65.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 61.
Friday Night
A chance of rain. Partly cloudy, with a low around 41.
Saturday
A chance of rain. Partly sunny, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
31 Miles NW Challis ID
 44.76°N 114.73°W (Elev. 8094 ft)
12:21 pm MDT Sep 6, 2026
12pm MDT Sep 6, 2026-6pm MDT Sep 12, 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