National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Autumn Temperatures for Eastern Third of the Country; Super Typhoon Approaching Guam

Cooler and less humid conditions for the eastern third of the nation as a cold slides off the east coast. Combination of dry and breezy conditions may result in spread of wildfires across the lower Mississippi Valley. In addition, fire weather conditions linger into portions of Southern California. For Guam, a super typhoon is approaching. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

Lat: 45.11667°NLon: 113.88333°WElev: 4045.0ft.

Clear

46°F

8°C

Humidity 65%
Wind Speed S 3 MPH
Barometer 30.32 in (1026.75 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 17 Oct 10:56 AM MDT
Extended Forecast for

5 Miles S Salmon ID

  • Today

    Today: Sunny, with a high near 70. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 70 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 33. West southwest wind 5 to 8 mph becoming calm after midnight.

    Low: 33 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 66. Light and variable wind.

    High: 66 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Light and variable wind becoming south 6 to 11 mph after midnight. Winds could gust as high as 21 mph.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 69. South southeast wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 70. South wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 24 mph.
Tonight
Partly cloudy, with a low around 33. West southwest wind 5 to 8 mph becoming calm after midnight.
Sunday
Mostly sunny, with a high near 66. Light and variable wind.
Sunday Night
Mostly clear, with a low around 35. Light and variable wind becoming south 6 to 11 mph after midnight. Winds could gust as high as 21 mph.
Monday
Mostly sunny, with a high near 69. South southeast wind 6 to 10 mph, with gusts as high as 21 mph.
Monday Night
Mostly cloudy, with a low around 37.
Tuesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 63.
Tuesday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 35.
Wednesday
Mostly sunny, with a high near 63.
Wednesday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 36.
Thursday
Rain likely. Partly sunny, with a high near 59.
Thursday Night
Rain likely. Mostly cloudy, with a low around 34.
Friday
Rain likely. Mostly cloudy, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Salmon ID
 45.1°N 113.88°W (Elev. 4114 ft)
Last Update:
2:01 am MDT Oct 17, 2026
Forecast Valid:
11am MDT Oct 17, 2026-6pm MDT Oct 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation