Cold Front Moving Through the Northeast U.S. Monday; Atmospheric River to Impact the Pacific Northwest Midweek

A cold front will cross the Great Lakes and Northeast U.S. through Monday with gusty winds and areas of rain showers. A strong atmospheric river is expected to move into the Pacific Northwest by midweek bringing a threat for moderate to heavy rainfall, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

34°F

1°C

Humidity 59%
Wind Speed N 0 MPH
Barometer 30.12 in (1019.98 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 03 Nov 10:20 AM MST
Extended Forecast for

4 Miles S Salmon ID

  • Today

    Today: Mostly sunny, with a high near 60. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 60 °F

    Mostly Sunny

  • Tonight

    Tonight: A 40 percent chance of rain, mainly after 3am.  Areas of frost after 4am.  Otherwise, mostly cloudy, with a low around 37. South wind 6 to 9 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain before 11am.  Areas of frost before 8am.  Otherwise, mostly cloudy, with a high near 57. West southwest wind 6 to 8 mph.

    High: 57 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Widespread frost, mainly after 5am.  Otherwise, mostly cloudy, with a low around 36. South wind 3 to 6 mph.

    Low: 36 °F

    Mostly Cloudy
    then Frost

  • Wednesday

    Wednesday: Widespread frost before 8am.  Otherwise, mostly cloudy, with a high near 60. South southeast wind 5 to 13 mph, with gusts as high as 26 mph.

    High: 60 °F

    Frost then
    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain

  • Thursday

    Thursday: A 20 percent chance of rain before 11am.  Partly sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 11pm.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Friday

    Friday: Rain likely, mainly before 11am.  Mostly cloudy, with a high near 49.

    High: 49 °F

    Rain Likely

Detailed Forecast

Today
Mostly sunny, with a high near 60. Calm wind becoming south southeast around 6 mph in the afternoon.
Tonight
A 40 percent chance of rain, mainly after 3am. Areas of frost after 4am. Otherwise, mostly cloudy, with a low around 37. South wind 6 to 9 mph, with gusts as high as 20 mph.
Tuesday
A 20 percent chance of rain before 11am. Areas of frost before 8am. Otherwise, mostly cloudy, with a high near 57. West southwest wind 6 to 8 mph.
Tuesday Night
Widespread frost, mainly after 5am. Otherwise, mostly cloudy, with a low around 36. South wind 3 to 6 mph.
Wednesday
Widespread frost before 8am. Otherwise, mostly cloudy, with a high near 60. South southeast wind 5 to 13 mph, with gusts as high as 26 mph.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 34.
Thursday
A 20 percent chance of rain before 11am. Partly sunny, with a high near 51.
Thursday Night
A chance of rain after 11pm. Mostly cloudy, with a low around 32.
Friday
Rain likely, mainly before 11am. Mostly cloudy, with a high near 49.
Friday Night
A slight chance of rain before 11pm. Mostly cloudy, with a low around 26.
Saturday
Mostly sunny, with a high near 48.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Partly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Salmon ID
 45.12°N 113.89°W (Elev. 4035 ft)
1:01 am MST Nov 3, 2025
10am MST Nov 3, 2025-6pm MST Nov 9, 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