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

64°F

18°C

Humidity 72%
Wind Speed N 0 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Aug 11:35 PM MDT
Extended Forecast for

11 Miles SSE Salmon ID

  • Tonight

    Tonight: A 20 percent chance of rain before midnight.  Mostly cloudy, with a low around 52. West northwest wind around 6 mph becoming south southwest after midnight.

    Low: 52 °F

    Slight Chance
    Rain

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Mostly sunny, with a high near 65. Light and variable wind becoming northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 65 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain before midnight.  Partly cloudy, with a low around 50. North northwest wind around 7 mph becoming south southwest after midnight.

    Low: 50 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. Light and variable wind becoming west northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 53. West northwest wind 5 to 7 mph becoming southwest after midnight.

    Low: 53 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 70.

    High: 70 °F

    Sunny

  • Thursday Night

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

    Low: 58 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 71.

    High: 71 °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

Detailed Forecast

Tonight
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 52. West northwest wind around 6 mph becoming south southwest after midnight.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 65. Light and variable wind becoming northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Tuesday Night
A 20 percent chance of rain before midnight. Partly cloudy, with a low around 50. North northwest wind around 7 mph becoming south southwest after midnight.
Wednesday
Sunny, with a high near 67. Light and variable wind becoming west northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 53. West northwest wind 5 to 7 mph becoming southwest after midnight.
Thursday
Sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 58.
Friday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71.
Friday Night
A chance of rain before midnight. Mostly cloudy, with a low around 58.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 68.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 53.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 50.
Monday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles SSE Salmon ID
 45.02°N 113.84°W (Elev. 8652 ft)
2:01 pm MDT Aug 17, 2026
11pm MDT Aug 17, 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