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

Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

70°F

21°C

Humidity 30%
Wind Speed NNE 17 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 17 Jun 01:20 AM MDT
Extended Forecast for

25 Miles SW Salmon ID

  • Overnight

    Overnight: Mostly clear, with a low around 46. West northwest wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 67. West wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph.

    High: 67 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. Northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 28 mph.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Calm wind becoming west northwest 5 to 9 mph in the afternoon.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48. Northwest wind 5 to 10 mph becoming light north northwest after midnight. Winds could gust as high as 18 mph.

    Low: 48 °F

    Mostly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 67.

    High: 67 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 46. West northwest wind 5 to 9 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 67. West wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 28 mph.
Wednesday Night
Mostly clear, with a low around 41. Northwest wind 10 to 15 mph becoming light and variable after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 72. Calm wind becoming west northwest 5 to 9 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 48. Northwest wind 5 to 10 mph becoming light north northwest after midnight. Winds could gust as high as 18 mph.
Juneteenth
Sunny, with a high near 76.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 53.
Saturday
A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 67.
Saturday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.
Sunday
Sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Sunny, with a high near 73.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
25 Miles SW Salmon ID
 44.93°N 114.28°W (Elev. 7188 ft)
Last Update:
12:21 am MDT Jun 17, 2026
Forecast Valid:
1am MDT Jun 17, 2026-6pm MDT Jun 23, 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