Heavy Great Lakes Snow through Friday; Extreme Cold and Potential for Major Winter Storm Late Week into this Weekend

Multiple clipper systems will bring cold temperatures and enhance lake-effect snow downwind of the Great Lakes. An arctic blast will bring frigid temperatures accompanied with gusty winds that may lead to dangerous wind chills beginning in the Northern Plains Thursday before expanding to the South and East. An expansive winter storm will start Friday in the Southern Rockies/Plains and Mid-South. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

6°F

-14°C

Humidity 82%
Wind Speed ESE 3 MPH
Barometer 30.34 in (1027.43 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Last update 21 Jan 05:56 AM MST
Extended Forecast for

8 Miles SSE Salmon ID

  • Today

    Today: Mostly sunny, with a high near 27. West wind 3 to 6 mph.

    High: 27 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 16. South southwest wind around 6 mph becoming west northwest in the evening.

    Low: 16 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 25. West wind around 5 mph becoming light and variable.

    High: 25 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 10. North wind around 7 mph becoming east southeast in the evening.

    Low: 10 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 17. Northeast wind 6 to 9 mph becoming north northwest in the morning.

    High: 17 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 6.

    Low: 6 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 18.

    High: 18 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 9.

    Low: 9 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 27. West wind 3 to 6 mph.
Tonight
Partly cloudy, with a low around 16. South southwest wind around 6 mph becoming west northwest in the evening.
Thursday
Partly sunny, with a high near 25. West wind around 5 mph becoming light and variable.
Thursday Night
Partly cloudy, with a low around 10. North wind around 7 mph becoming east southeast in the evening.
Friday
Sunny, with a high near 17. Northeast wind 6 to 9 mph becoming north northwest in the morning.
Friday Night
Mostly clear, with a low around 6.
Saturday
Sunny, with a high near 18.
Saturday Night
Mostly clear, with a low around 9.
Sunday
Mostly sunny, with a high near 23.
Sunday Night
Mostly clear, with a low around 14.
Monday
Mostly sunny, with a high near 26.
Monday Night
Partly cloudy, with a low around 19.
Tuesday
Mostly sunny, with a high near 29.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSE Salmon ID
 45.06°N 113.85°W (Elev. 7946 ft)
2:06 am MST Jan 21, 2026
6am MST Jan 21, 2026-6pm MST Jan 27, 2026
 
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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