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

Snow Squalls in the Northeast U.S. on Thursday; Heavy Rain Along the Gulf Coast

An arctic cold front will move through the Great Lakes and Northeast on Thursday, bringing moderate to heavy snow, strong winds, and possible whiteout conditions through Thursday afternoon. A storm system interacting with Gulf moisture will bring moderate to heavy rainfall to the western and central Gulf Coast on Thursday. Isolated instances of flash flooding will be possible. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

18°F

-8°C

Humidity 92%
Wind Speed N 0 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 04 Dec 02:20 AM MST
Extended Forecast for

4 Miles S Salmon ID

  • Overnight

    Overnight: Partly cloudy, with a low around 17. Calm wind.

    Low: 17 °F

    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of snow, mainly after 2pm. Mostly cloudy, with a high near 35. Light and variable wind. New snow accumulation of less than a half inch possible.

    High: 35 °F

    Mostly Cloudy
    then Chance
    Snow

  • Thursday Night

    Thursday Night: A chance of rain, snow, and freezing rain before 3am, then a chance of snow and freezing rain between 3am and 5am, then a chance of rain, snow, and freezing rain after 5am. Snow level 4200 feet. Cloudy, with a low around 25. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Wintry
    Mix

  • Friday

    Friday: A chance of snow and freezing rain before 10am, then rain likely, possibly mixed with snow. Snow level 4300 feet rising to 5200 feet in the afternoon. Mostly cloudy, with a high near 40. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Wintry Mix
    Likely

  • Friday Night

    Friday Night: Rain likely, possibly mixed with snow before 11pm, then a chance of rain, snow, and freezing rain. Mostly cloudy, with a low around 28. West wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 28 °F

    Wintry Mix
    Likely

  • Saturday

    Saturday: A chance of rain, snow, and freezing rain before 8am, then a chance of rain and snow between 8am and 11am, then a chance of rain after 11am. Snow level 4600 feet. Mostly cloudy, with a high near 42. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 42 °F

    Chance Wintry
    Mix then
    Chance Rain

  • Saturday Night

    Saturday Night: A slight chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 11pm, then a slight chance of snow after 11pm. Mostly cloudy, with a low around 22. Chance of precipitation is 20%.

    Low: 22 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Sunday

    Sunday: Mostly cloudy, with a high near 41.

    High: 41 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A slight chance of rain before 8pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Slight Chance
    Rain/Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 17. Calm wind.
Thursday
A 50 percent chance of snow, mainly after 2pm. Mostly cloudy, with a high near 35. Light and variable wind. New snow accumulation of less than a half inch possible.
Thursday Night
A chance of rain, snow, and freezing rain before 3am, then a chance of snow and freezing rain between 3am and 5am, then a chance of rain, snow, and freezing rain after 5am. Snow level 4200 feet. Cloudy, with a low around 25. Calm wind. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Friday
A chance of snow and freezing rain before 10am, then rain likely, possibly mixed with snow. Snow level 4300 feet rising to 5200 feet in the afternoon. Mostly cloudy, with a high near 40. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
Rain likely, possibly mixed with snow before 11pm, then a chance of rain, snow, and freezing rain. Mostly cloudy, with a low around 28. West wind 8 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday
A chance of rain, snow, and freezing rain before 8am, then a chance of rain and snow between 8am and 11am, then a chance of rain after 11am. Snow level 4600 feet. Mostly cloudy, with a high near 42. Chance of precipitation is 50%. Little or no snow accumulation expected.
Saturday Night
A slight chance of rain before 8pm, then a slight chance of rain and snow between 8pm and 11pm, then a slight chance of snow after 11pm. Mostly cloudy, with a low around 22. Chance of precipitation is 20%.
Sunday
Mostly cloudy, with a high near 41.
Sunday Night
A slight chance of rain before 8pm, then a slight chance of rain and snow. Mostly cloudy, with a low around 27.
Monday
Mostly cloudy, with a high near 45.
Monday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 29.
Tuesday
A chance of rain. Mostly cloudy, with a high near 47.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 33.
Wednesday
A chance of rain and snow. Mostly cloudy, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Salmon ID
 45.12°N 113.89°W (Elev. 4035 ft)
Last Update:
1:01 am MST Dec 4, 2025
Forecast Valid:
2am MST Dec 4, 2025-6pm MST Dec 10, 2025
 
Forecast Discussion
 
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Additional Resources

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