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.

Overcast

51°F

11°C

Humidity 85%
Wind Speed N 3 MPH
Barometer 29.96 in (1014.56 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 04 Oct 04:56 AM MDT
Extended Forecast for

12 Miles SSW Salmon ID

  • Overnight

    Overnight: A 20 percent chance of rain. Cloudy, with a low around 45. North wind around 9 mph.

    Low: 45 °F

    Slight Chance
    Rain

  • Saturday

    Saturday: A chance of rain before 10am, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 56. North wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

    High: 56 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 40 percent chance of rain, mainly after 5am. Mostly cloudy, with a low around 37. North northwest wind 5 to 13 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A 50 percent chance of rain. Partly sunny, with a high near 52. North northeast wind 5 to 8 mph.

    High: 52 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 32. North northeast wind 5 to 8 mph becoming calm after midnight.

    Low: 32 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 35.

    Low: 35 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

Detailed Forecast

Overnight
A 20 percent chance of rain. Cloudy, with a low around 45. North wind around 9 mph.
Saturday
A chance of rain before 10am, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 56. North wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of rain, mainly after 5am. Mostly cloudy, with a low around 37. North northwest wind 5 to 13 mph, with gusts as high as 20 mph.
Sunday
A 50 percent chance of rain. Partly sunny, with a high near 52. North northeast wind 5 to 8 mph.
Sunday Night
Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 32. North northeast wind 5 to 8 mph becoming calm after midnight.
Monday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 58.
Monday Night
Clear, with a low around 35.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Clear, with a low around 38.
Wednesday
Sunny, with a high near 67.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 68.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 70.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SSW Salmon ID
 45.01°N 113.96°W (Elev. 4220 ft)
Last Update:
3:30 am MDT Oct 4, 2025
Forecast Valid:
5am MDT Oct 4, 2025-6pm MDT Oct 10, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation