Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

75°F

24°C

Humidity 22%
Wind Speed N 16 MPH
Barometer 29.92 in (1013.21 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 17 Jun 06:20 PM MDT
Extended Forecast for

21 Miles NNW Challis ID

  • Tonight

    Tonight: Mostly clear, with a low around 36. Northwest wind 16 to 21 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 32 mph.

    Low: 36 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 65. West northwest wind 5 to 14 mph, with gusts as high as 22 mph.

    High: 65 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. Northwest wind 6 to 15 mph, with gusts as high as 24 mph.

    Low: 44 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 69. South southwest wind 6 to 11 mph becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight.  Mostly cloudy, with a low around 49. West wind 7 to 17 mph, with gusts as high as 26 mph.

    Low: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain, then showers and possibly a thunderstorm after noon.  High near 58. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Chance Rain
    then Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 36. Northwest wind 16 to 21 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 32 mph.
Thursday
Sunny, with a high near 65. West northwest wind 5 to 14 mph, with gusts as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 44. Northwest wind 6 to 15 mph, with gusts as high as 24 mph.
Juneteenth
Mostly sunny, with a high near 69. South southwest wind 6 to 11 mph becoming west 12 to 17 mph in the afternoon. Winds could gust as high as 26 mph.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 49. West wind 7 to 17 mph, with gusts as high as 26 mph.
Saturday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 58. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 38.
Sunday
Sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 37.
Monday
Sunny, with a high near 65.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 69.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles NNW Challis ID
 44.8°N 114.34°W (Elev. 8865 ft)
2:01 pm MDT Jun 17, 2026
6pm MDT Jun 17, 2026-6pm MDT Jun 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