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

Tropical Storm Edouard to Impact the Northwest Gulf Coast; Heat Expands Eastward

Tropical Storm Edouard will bring tropical storm to hurricane conditions, heavy rainfall, flash and some river flooding, and storm surge to portions of Upper Texas and southwestern Louisiana coasts into Wednesday. Severe thunderstorms are possible in the Central Plains and Mid-Atlantic. Hot and humid conditions will expand from the Central Plains into the Ohio Valley and Mid-Atlantic. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

82°F

28°C

Humidity 29%
Wind Speed NE 5 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 47°F (8°C)
Visibility 7.00 mi
Heat Index80°F (27°C)
Last update 01 Sep 02:56 PM MDT
Extended Forecast for

18 Miles S Salmon ID

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 85. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Tonight

    Tonight: Rain likely and possibly a thunderstorm before 11pm, then a chance of rain between 11pm and midnight. Mostly cloudy, with a low around 51. West southwest wind 6 to 11 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 51 °F

    Showers
    Likely then
    Mostly Cloudy

  • Wednesday

    Wednesday: Rain and thunderstorms before noon, then a chance of showers and thunderstorms, mainly between noon and 5pm. High near 75. Light west southwest wind becoming southwest 16 to 21 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%.

    High: 75 °F

    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 48. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 26 mph.

    Low: 48 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 72. South southwest wind 11 to 21 mph, with gusts as high as 26 mph.

    High: 72 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

  • Friday

    Friday: A chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. Chance of precipitation is 30%.

    High: 76 °F

    Chance Rain
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of rain, mainly after midnight. Partly cloudy, with a low around 50.

    Low: 50 °F

    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 85. South wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Tonight
Rain likely and possibly a thunderstorm before 11pm, then a chance of rain between 11pm and midnight. Mostly cloudy, with a low around 51. West southwest wind 6 to 11 mph becoming light and variable after midnight. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain and thunderstorms before noon, then a chance of showers and thunderstorms, mainly between noon and 5pm. High near 75. Light west southwest wind becoming southwest 16 to 21 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 80%.
Wednesday Night
Mostly cloudy, with a low around 48. Breezy, with a south southwest wind 14 to 22 mph, with gusts as high as 26 mph.
Thursday
Partly sunny, with a high near 72. South southwest wind 11 to 21 mph, with gusts as high as 26 mph.
Thursday Night
A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 50.
Friday
A chance of rain before noon, then a slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 76. Chance of precipitation is 30%.
Friday Night
A chance of rain, mainly after midnight. Partly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 81.
Saturday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 53.
Sunday
A chance of rain. Mostly sunny, with a high near 81.
Sunday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 53.
Labor Day
Rain likely. Partly sunny, with a high near 76.
Monday Night
A chance of rain. Mostly cloudy, with a low around 49.
Tuesday
A slight chance of rain and thunderstorms. Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles S Salmon ID
 44.92°N 113.97°W (Elev. 4537 ft)
Last Update:
12:22 pm MDT Sep 1, 2026
Forecast Valid:
3pm MDT Sep 1, 2026-6pm MDT Sep 8, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation