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.

Partly Cloudy

57°F

14°C

Humidity 41%
Wind Speed NNW 13 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 04 Oct 01:20 PM MDT
Extended Forecast for

24 Miles SSW Salmon ID

  • This Afternoon

    This Afternoon: A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 52. North wind around 15 mph, with gusts as high as 23 mph.

    High: 52 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A slight chance of rain before 2am, then a chance of rain and snow after 4am. Snow level 7800 feet lowering to 6600 feet after midnight . Mostly cloudy, with a low around 35. North wind 7 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of rain and snow before 11am, then a chance of rain. Snow level 6300 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 48. North northeast wind 6 to 10 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 30. Northeast wind 6 to 9 mph.

    Low: 30 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 54. Light and variable wind becoming southeast around 6 mph in the morning.

    High: 54 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 33.

    Low: 33 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of rain after 5pm. Mostly cloudy, with a high near 52. North wind around 15 mph, with gusts as high as 23 mph.
Tonight
A slight chance of rain before 2am, then a chance of rain and snow after 4am. Snow level 7800 feet lowering to 6600 feet after midnight . Mostly cloudy, with a low around 35. North wind 7 to 14 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
A chance of rain and snow before 11am, then a chance of rain. Snow level 6300 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 48. North northeast wind 6 to 10 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday Night
Widespread frost, mainly after 3am. Otherwise, partly cloudy, with a low around 30. Northeast wind 6 to 9 mph.
Monday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 54. Light and variable wind becoming southeast around 6 mph in the morning.
Monday Night
Clear, with a low around 33.
Tuesday
Sunny, with a high near 60.
Tuesday Night
Clear, with a low around 36.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 40.
Friday
Sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
24 Miles SSW Salmon ID
 44.85°N 114.02°W (Elev. 6098 ft)
Last Update:
3:30 am MDT Oct 4, 2025
Forecast Valid:
1pm MDT Oct 4, 2025-6pm MDT Oct 10, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation