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

Tracking Atmospheric River for the West Coast; Space Weather Storming Continues

An atmospheric river will bring threats of gusty to high winds and heavy rainfall to California mainly Thursday into Saturday which may bring areas of flooding and wind damage. Heavy snow will be possible over the Sierra Nevada mountains Thursday into Friday associated with the atmospheric river. Minor to severe geomagnetic storming (space weather) is expected to continue into early Thursday. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

36°F

2°C

Humidity 74%
Wind Speed SSW 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 12 Nov 10:05 PM MST
Extended Forecast for

4 Miles S Salmon ID

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southeast wind around 6 mph.

    Low: 34 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 61. South wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 61 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 37. South wind 9 to 11 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Chance Rain

  • Friday

    Friday: A 40 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 55. West southwest wind 9 to 14 mph, with gusts as high as 24 mph.

    High: 55 °F

    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 33. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 33 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of rain after 11am. Partly sunny, with a high near 50.

    High: 50 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: A chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. Southeast wind around 6 mph.
Thursday
Mostly sunny, with a high near 61. South wind 5 to 11 mph, with gusts as high as 21 mph.
Thursday Night
A 30 percent chance of rain after 11pm. Mostly cloudy, with a low around 37. South wind 9 to 11 mph, with gusts as high as 23 mph.
Friday
A 40 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 55. West southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 33. Southwest wind 5 to 11 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 54.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
A slight chance of rain after 11am. Partly sunny, with a high near 50.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 32.
Monday
A chance of rain before 11am, then a chance of rain and snow. Mostly cloudy, with a high near 46.
Monday Night
A chance of rain and snow. Snow level 5600 feet lowering to 4500 feet after midnight . Mostly cloudy, with a low around 26.
Tuesday
Mostly cloudy, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
A slight chance of rain and snow. Partly sunny, with a high near 41.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Salmon ID
 45.12°N 113.89°W (Elev. 4035 ft)
Last Update:
1:02 pm MST Nov 12, 2025
Forecast Valid:
10pm MST Nov 12, 2025-6pm MST Nov 19, 2025
 
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Additional Resources

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Chance of Precipitation