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

Salmon, Lemhi County Airport (KSMN)

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

Clear

39°F

4°C

Humidity 55%
Wind Speed N 0 MPH
Barometer 30.01 in (1016.26 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 10 Apr 09:20 AM MDT
Extended Forecast for

31 Miles WNW Challis ID

  • Today

    Today: A chance of rain and snow showers after 2pm. Some thunder is also possible. Snow level rising to 9900 feet in the afternoon. Partly sunny, with a high near 49. South wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 49 °F

    Partly Sunny
    then Chance
    Rain/Snow

  • Tonight

    Tonight: Rain likely before 10pm, then rain and snow likely between 10pm and midnight, then a chance of snow after midnight. Some thunder is also possible. Snow level 9900 feet lowering to 9100 feet after midnight . Mostly cloudy, with a low around 34. South wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 34 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Saturday

    Saturday: Snow likely before noon, then snow showers after noon. Some thunder is also possible. High near 40. Southwest wind 11 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 40 °F

    Snow Likely
    then Snow
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 30. West southwest wind 9 to 17 mph becoming south after midnight. Winds could gust as high as 23 mph. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Snow, mainly between noon and 3pm, then snow showers after 3pm. Some thunder is also possible. High near 39. Southeast wind 8 to 11 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 39 °F

    Chance Snow
    then Snow

  • Sunday Night

    Sunday Night: Snow. Low around 30. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    Low: 30 °F

    Snow

  • Monday

    Monday: Snow. High near 32. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 32 °F

    Snow

  • Monday Night

    Monday Night: A chance of snow, mainly before midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Chance Snow

  • Tuesday

    Tuesday: A slight chance of snow before noon. Partly sunny, with a high near 34.

    High: 34 °F

    Slight Chance
    Snow then
    Mostly Sunny

Detailed Forecast

Today
A chance of rain and snow showers after 2pm. Some thunder is also possible. Snow level rising to 9900 feet in the afternoon. Partly sunny, with a high near 49. South wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tonight
Rain likely before 10pm, then rain and snow likely between 10pm and midnight, then a chance of snow after midnight. Some thunder is also possible. Snow level 9900 feet lowering to 9100 feet after midnight . Mostly cloudy, with a low around 34. South wind 9 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
Snow likely before noon, then snow showers after noon. Some thunder is also possible. High near 40. Southwest wind 11 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Saturday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 30. West southwest wind 9 to 17 mph becoming south after midnight. Winds could gust as high as 23 mph. New snow accumulation of less than a half inch possible.
Sunday
Snow, mainly between noon and 3pm, then snow showers after 3pm. Some thunder is also possible. High near 39. Southeast wind 8 to 11 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Sunday Night
Snow. Low around 30. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Monday
Snow. High near 32. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Monday Night
A chance of snow, mainly before midnight. Mostly cloudy, with a low around 27.
Tuesday
A slight chance of snow before noon. Partly sunny, with a high near 34.
Tuesday Night
A chance of snow after midnight. Mostly cloudy, with a low around 28.
Wednesday
Snow likely. Mostly cloudy, with a high near 30.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 22.
Thursday
A chance of snow. Partly sunny, with a high near 29.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
31 Miles WNW Challis ID
 44.76°N 114.76°W (Elev. 9058 ft)
Last Update:
2:01 am MDT Apr 10, 2026
Forecast Valid:
9am MDT Apr 10, 2026-6pm MDT Apr 16, 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