Severe Thunderstorms in the Central Plains and Lower Missouri Valley; Heat Continues in the Southeast and Southwest

Severe thunderstorms capable of large hail and damaging wind gusts are forecast to impact the central Plains into the Lower Missouri Valley through this afternoon. Dangerous heat persists across the southern Plains, Southeast U.S. and Puerto Rico this week, and will return to the Southwest today. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Partly Cloudy

84°F

29°C

Humidity 28%
Wind Speed N 0 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 48°F (9°C)
Visibility 8.00 mi
Heat Index82°F (28°C)
Last update 18 Aug 02:35 PM MDT
Extended Forecast for

31 Miles NNW Challis ID

  • This Afternoon

    This Afternoon: A chance of rain before 3pm, then a chance of showers and thunderstorms after 3pm.  Partly sunny, with a high near 64. West wind 15 to 17 mph, with gusts as high as 30 mph.  Chance of precipitation is 30%.

    High: 64 °F

    Chance
    Showers

  • Tonight

    Tonight: A 20 percent chance of rain before 9pm.  Mostly clear, with a low around 50. West wind 11 to 16 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph.

    Low: 50 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. West wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. West wind 6 to 9 mph becoming south in the evening. Winds could gust as high as 18 mph.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. South wind 5 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

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

    Low: 58 °F

    Chance Rain
    then Mostly
    Cloudy

  • Saturday

    Saturday: A slight chance of rain, then a chance of showers and thunderstorms after noon.  Partly sunny, with a high near 65.

    High: 65 °F

    Slight Chance
    Rain then
    Chance
    T-storms

Detailed Forecast

This Afternoon
A chance of rain before 3pm, then a chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 64. West wind 15 to 17 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Tonight
A 20 percent chance of rain before 9pm. Mostly clear, with a low around 50. West wind 11 to 16 mph becoming northwest 5 to 10 mph after midnight. Winds could gust as high as 29 mph.
Wednesday
Sunny, with a high near 67. West wind 7 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 54. West wind 6 to 9 mph becoming south in the evening. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 72. South wind 5 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 58.
Friday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 72.
Friday Night
A 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 65.
Saturday Night
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 51.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 50.
Monday
A slight chance of showers and thunderstorms. Sunny, with a high near 66.
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ABOUT THIS FORECAST

 
Point Forecast:
31 Miles NNW Challis ID
 44.91°N 114.49°W (Elev. 8875 ft)
2:00 pm MDT Aug 18, 2026
2pm MDT Aug 18, 2026-6pm MDT Aug 24, 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