Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

40°F

4°C

Humidity 89%
Wind Speed N 3 MPH
Barometer 30.07 in (1018.29 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 10 Dec 07:56 PM MST
Extended Forecast for

4 Miles S Salmon ID

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South southwest wind around 9 mph, with gusts as high as 24 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain, mainly after 3pm.  Partly sunny, with a high near 50. West wind 6 to 9 mph, with gusts as high as 21 mph.

    High: 50 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain.  Cloudy, with a low around 37. Southwest wind 6 to 9 mph.

    Low: 37 °F

    Slight Chance
    Rain

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 51. Southwest wind 5 to 7 mph.

    High: 51 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. Southwest wind 5 to 7 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 34. South southwest wind around 9 mph, with gusts as high as 24 mph.
Thursday
A 30 percent chance of rain, mainly after 3pm. Partly sunny, with a high near 50. West wind 6 to 9 mph, with gusts as high as 21 mph.
Thursday Night
A 20 percent chance of rain. Cloudy, with a low around 37. Southwest wind 6 to 9 mph.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 51. Southwest wind 5 to 7 mph.
Friday Night
Partly cloudy, with a low around 27. Southwest wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 47.
Saturday Night
Mostly clear, with a low around 24.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 48.
Monday Night
A chance of rain. Mostly cloudy, with a low around 33.
Tuesday
A chance of rain. Partly sunny, with a high near 47.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 31.
Wednesday
A chance of rain and snow. Snow level 4700 feet. Partly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Salmon ID
 45.12°N 113.89°W (Elev. 4035 ft)
1:02 pm MST Dec 10, 2025
8pm MST Dec 10, 2025-6pm MST Dec 17, 2025
 
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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