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

48°F

9°C

Humidity 49%
Wind Speed N 0 MPH
Barometer 29.97 in (1014.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 08 Oct 09:35 PM MDT
Extended Forecast for

20 Miles S Salmon ID

  • Tonight

    Tonight: Partly cloudy, with a low around 40. South wind 5 to 10 mph becoming light and variable after midnight.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 74. Light south southeast wind becoming south 5 to 10 mph in the morning.

    High: 74 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. South southeast wind 6 to 10 mph.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 74. South southeast wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: A 50 percent chance of rain after midnight. Partly cloudy, with a low around 48. South wind 6 to 14 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 48 °F

    Mostly Clear
    then Chance
    Rain

  • Saturday

    Saturday: Rain likely before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly after midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 37 °F

    Rain Likely

  • Sunday

    Sunday: A chance of rain, mainly before noon. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

  • Sunday Night

    Sunday Night: A slight chance of rain. Mostly cloudy, with a low around 33.

    Low: 33 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Partly cloudy, with a low around 40. South wind 5 to 10 mph becoming light and variable after midnight.
Thursday
Sunny, with a high near 74. Light south southeast wind becoming south 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 46. South southeast wind 6 to 10 mph.
Friday
Sunny, with a high near 74. South southeast wind 6 to 15 mph, with gusts as high as 23 mph.
Friday Night
A 50 percent chance of rain after midnight. Partly cloudy, with a low around 48. South wind 6 to 14 mph, with gusts as high as 20 mph. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 63. Chance of precipitation is 60%.
Saturday Night
Rain likely, mainly after midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A chance of rain, mainly before noon. Partly sunny, with a high near 52.
Sunday Night
A slight chance of rain. Mostly cloudy, with a low around 33.
Columbus Day
A slight chance of rain. Partly sunny, with a high near 56.
Monday Night
A chance of rain. Mostly cloudy, with a low around 35.
Tuesday
A chance of rain. Partly sunny, with a high near 55.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 35.
Wednesday
A chance of rain. Partly sunny, with a high near 50.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
20 Miles S Salmon ID
 44.88°N 113.96°W (Elev. 4600 ft)
Last Update:
4:16 pm MDT Oct 8, 2025
Forecast Valid:
9pm MDT Oct 8, 2025-6pm MDT Oct 15, 2025
 
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Additional Resources

Radar & Satellite Image

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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