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

54°F

12°C

Humidity 80%
Wind Speed N 0 MPH
Barometer 30.0 in (1015.92 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 03 Oct 01:56 PM MDT
Extended Forecast for

15 Miles S Salmon ID

  • This Afternoon

    This Afternoon: Rain likely, mainly after 3pm. Mostly cloudy, with a high near 62. West northwest wind around 10 mph becoming north. Chance of precipitation is 70%.

    High: 62 °F

    Rain Likely

  • Tonight

    Tonight: A chance of rain before 2am, then rain likely after 3am. Mostly cloudy, with a low around 46. North northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Rain Likely

  • Saturday

    Saturday: A 40 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 58. North wind 10 to 15 mph, with gusts as high as 21 mph.

    High: 58 °F

    Chance Rain

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 39. North northwest wind 6 to 11 mph.

    Low: 39 °F

    Chance Rain

  • Sunday

    Sunday: A 40 percent chance of rain. Partly sunny, with a high near 56. Northeast wind 5 to 8 mph.

    High: 56 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Widespread frost between 7am and 11am. Otherwise, sunny, with a high near 61.

    High: 61 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

Detailed Forecast

This Afternoon
Rain likely, mainly after 3pm. Mostly cloudy, with a high near 62. West northwest wind around 10 mph becoming north. Chance of precipitation is 70%.
Tonight
A chance of rain before 2am, then rain likely after 3am. Mostly cloudy, with a low around 46. North northeast wind around 10 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 40 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 58. North wind 10 to 15 mph, with gusts as high as 21 mph.
Saturday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 39. North northwest wind 6 to 11 mph.
Sunday
A 40 percent chance of rain. Partly sunny, with a high near 56. Northeast wind 5 to 8 mph.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Widespread frost between 7am and 11am. Otherwise, sunny, with a high near 61.
Monday Night
Clear, with a low around 36.
Tuesday
Sunny, with a high near 67.
Tuesday Night
Clear, with a low around 38.
Wednesday
Sunny, with a high near 69.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles S Salmon ID
 44.97°N 113.95°W (Elev. 4324 ft)
Last Update:
3:31 am MDT Oct 3, 2025
Forecast Valid:
2pm MDT Oct 3, 2025-6pm MDT Oct 9, 2025
 
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