Widespread Rain from Texas to the Central Appalachians; Heavy to Excessive Rainfall in Southern California and the Southwest

Scattered thunderstorms and widespread showers are expected from the Texas coast to the central Appalachians today. Heavy to excessive rainfall will continue in southern California into the Desert Southwest through Saturday. Heavy rain will pose a risk of flash flooding, especially across burn scar and urbanized regions. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

41°F

5°C

Humidity 75%
Wind Speed N 0 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 21 Nov 08:20 PM MST
Extended Forecast for

4 Miles S Salmon ID

  • Tonight

    Tonight: Patchy fog between 4am and 5am.  Otherwise, partly cloudy, with a low around 26. Calm wind.

    Low: 26 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am.  Otherwise, mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23. Light south southeast wind.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 50. Calm wind.

    High: 50 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 11pm.  Mostly cloudy, with a low around 23. West wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: 23 °F

    Slight Chance
    Rain

  • Monday

    Monday: A slight chance of rain and snow before 8am, then a slight chance of snow between 8am and 11am.  Partly sunny, with a high near 40. Chance of precipitation is 20%.

    High: 40 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 15.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Patchy fog between 4am and 5am. Otherwise, partly cloudy, with a low around 26. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 49. Calm wind.
Saturday Night
Mostly clear, with a low around 23. Light south southeast wind.
Sunday
Mostly sunny, with a high near 50. Calm wind.
Sunday Night
A 20 percent chance of rain after 11pm. Mostly cloudy, with a low around 23. West wind 3 to 8 mph. Winds could gust as high as 20 mph.
Monday
A slight chance of rain and snow before 8am, then a slight chance of snow between 8am and 11am. Partly sunny, with a high near 40. Chance of precipitation is 20%.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 36.
Tuesday Night
Mostly cloudy, with a low around 20.
Wednesday
A slight chance of snow before 11am, then a slight chance of rain and snow. Snow level rising to 5100 feet in the afternoon. Mostly cloudy, with a high near 41.
Wednesday Night
A chance of rain and snow. Patchy fog. Otherwise, mostly cloudy, with a low around 27.
Thanksgiving Day
Patchy fog. Otherwise, mostly cloudy, with a high near 46.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
A chance of rain and snow. Snow level 4700 feet rising to 5300 feet in the afternoon. Mostly cloudy, 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 Nov 21, 2025
8pm MST Nov 21, 2025-6pm MST Nov 28, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database