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.

Mostly Cloudy

50°F

10°C

Humidity 81%
Wind Speed N 6 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 02 Oct 01:35 AM MDT
Extended Forecast for

15 Miles NE Challis ID

  • Overnight

    Overnight: A 20 percent chance of showers after 5am. Mostly cloudy, with a low around 46. South southwest wind 6 to 9 mph becoming north northeast.

    Low: 46 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 67. Light and variable wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 67 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers after 9pm. Low around 47. West northwest wind around 6 mph becoming light and variable. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 47 °F

    Chance
    Showers then
    Showers

  • Friday

    Friday: Showers, with thunderstorms also possible after noon. High near 62. North wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Showers

  • Friday Night

    Friday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43. North northwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 43 °F

    Showers
    Likely

  • Saturday

    Saturday: A 50 percent chance of showers. Mostly cloudy, with a high near 56. New precipitation amounts of less than a tenth of an inch possible.

    High: 56 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly after noon. Partly sunny, with a high near 55.

    High: 55 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy
    then Frost

Detailed Forecast

Overnight
A 20 percent chance of showers after 5am. Mostly cloudy, with a low around 46. South southwest wind 6 to 9 mph becoming north northeast.
Thursday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 67. Light and variable wind becoming west southwest around 6 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms, then showers after 9pm. Low around 47. West northwest wind around 6 mph becoming light and variable. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers, with thunderstorms also possible after noon. High near 62. North wind around 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 43. North northwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 50 percent chance of showers. Mostly cloudy, with a high near 56. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 36.
Sunday
A chance of showers, mainly after noon. Partly sunny, with a high near 55.
Sunday Night
Widespread frost, mainly after 5am. Otherwise, partly cloudy, with a low around 31.
Monday
Widespread frost, mainly before 10am. Otherwise, sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Widespread frost. Otherwise, sunny, with a high near 63.
Tuesday Night
Mostly clear, with a low around 36.
Wednesday
Widespread frost. Otherwise, sunny, with a high near 64.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NE Challis ID
 44.7°N 114.05°W (Elev. 4799 ft)
Last Update:
2:31 pm MDT Oct 1, 2025
Forecast Valid:
1am MDT Oct 2, 2025-6pm MDT Oct 8, 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