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

Salmon, Lemhi County Airport (KSMN)

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

Clear

72°F

22°C

Humidity 45%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 17 Aug 08:56 PM MDT
Extended Forecast for

26 Miles WNW Challis ID

  • Tonight

    Tonight: Mostly cloudy, with a low around 53. Light and variable wind becoming southeast around 6 mph after midnight.

    Low: 53 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of showers and thunderstorms after 3pm.  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 21 mph.  Chance of precipitation is 30%.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 52. West northwest wind 5 to 10 mph becoming southeast after midnight.

    Low: 52 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 72. South 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 76.

    High: 76 °F

    Sunny

  • Thursday Night

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

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A slight chance of rain before midnight.  Mostly cloudy, with a low around 58.

    Low: 58 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 53. Light and variable wind becoming southeast around 6 mph after midnight.
Tuesday
A slight chance of rain, then a chance of showers and thunderstorms after 3pm. 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 21 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly clear, with a low around 52. West northwest wind 5 to 10 mph becoming southeast after midnight.
Wednesday
Sunny, with a high near 72. South 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 76.
Thursday Night
Partly cloudy, with a low around 59.
Friday
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76.
Friday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 58.
Saturday
A slight chance of rain, then a 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 68.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
26 Miles WNW Challis ID
 44.68°N 114.68°W (Elev. 8025 ft)
2:01 pm MDT Aug 17, 2026
9pm MDT Aug 17, 2026-6pm MDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database