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

Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

56°F

13°C

Humidity 90%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 23 Aug 04:56 AM MDT
Extended Forecast for

15 Miles S Salmon ID

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 70. South southwest wind 13 to 18 mph, with gusts as high as 33 mph.

    High: 70 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 49. West wind 6 to 16 mph becoming east northeast after midnight. Winds could gust as high as 25 mph.

    Low: 49 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 69. South southwest wind 6 to 8 mph becoming west in the afternoon.

    High: 69 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 54. West northwest wind around 8 mph becoming southwest after midnight.

    Low: 54 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70. South southwest wind around 7 mph.

    High: 70 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny
    then Chance
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 53.

    Low: 53 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 70. South southwest wind 13 to 18 mph, with gusts as high as 33 mph.
Tonight
Mostly clear, with a low around 49. West wind 6 to 16 mph becoming east northeast after midnight. Winds could gust as high as 25 mph.
Monday
Mostly sunny, with a high near 69. South southwest wind 6 to 8 mph becoming west in the afternoon.
Monday Night
Partly cloudy, with a low around 54. West northwest wind around 8 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 70. South southwest wind around 7 mph.
Tuesday Night
Mostly cloudy, with a low around 55.
Wednesday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 70.
Wednesday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 53.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 51.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 51.
Saturday
A slight chance of rain. Mostly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles S Salmon ID
 44.95°N 113.88°W (Elev. 8219 ft)
Last Update:
2:01 am MDT Aug 23, 2026
Forecast Valid:
5am MDT Aug 23, 2026-6pm MDT Aug 29, 2026
 
Forecast Discussion
 
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Additional Resources

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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