National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

63°F

17°C

Humidity 44%
Wind Speed N 0 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 12 Aug 01:56 AM MDT
Extended Forecast for

26 Miles NE Challis ID

  • Overnight

    Overnight: Patchy smoke. Mostly cloudy, with a low around 49. East wind around 7 mph becoming south southwest.

    Low: 49 °F

    Patchy Smoke

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 3pm. Patchy smoke. Mostly sunny, with a high near 64. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 64 °F

    Patchy Smoke
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Patchy smoke before 7pm. Mostly cloudy, with a low around 47. West southwest wind 8 to 13 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.

    Low: 47 °F

    Patchy Smoke
    then Mostly
    Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 58. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.

    High: 58 °F

    Partly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Cloudy, with a low around 45. West wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Showers
    Likely

  • Friday

    Friday: A chance of rain, then showers and possibly a thunderstorm after noon. High near 53. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Chance Rain
    then Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.

    Low: 42 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: Showers and possibly a thunderstorm after noon. Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny
    then Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Showers
    Likely

Detailed Forecast

Overnight
Patchy smoke. Mostly cloudy, with a low around 49. East wind around 7 mph becoming south southwest.
Wednesday
A 20 percent chance of showers and thunderstorms after 3pm. Patchy smoke. Mostly sunny, with a high near 64. Southwest wind 5 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
Patchy smoke before 7pm. Mostly cloudy, with a low around 47. West southwest wind 8 to 13 mph becoming north northeast after midnight. Winds could gust as high as 18 mph.
Thursday
A 30 percent chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 58. South southwest wind 7 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Showers likely and possibly a thunderstorm before 9pm, then rain likely, mainly between 9pm and midnight. Cloudy, with a low around 45. West wind 6 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 53. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 42. Chance of precipitation is 50%.
Saturday
Showers and possibly a thunderstorm after noon. Partly sunny, with a high near 54.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of rain after midnight. Mostly cloudy, with a low around 42.
Sunday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 58.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 46.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 59.
Monday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
26 Miles NE Challis ID
 44.78°N 113.88°W (Elev. 9642 ft)
Last Update:
2:01 am MDT Aug 12, 2026
Forecast Valid:
2am MDT Aug 12, 2026-6pm MDT Aug 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation