Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

55°F

13°C

Humidity 35%
Wind Speed ESE 4 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 20 Mar 10:20 PM MDT
Extended Forecast for

28 Miles SSW Shoup ID

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. West southwest wind around 10 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain after 1pm.  Increasing clouds, with a high near 50. Breezy, with a west southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 47 mph.

    High: 50 °F

    Mostly Sunny
    then Chance
    Rain and
    Breezy

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before midnight.  Partly cloudy, with a low around 27. West northwest wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 34 mph.  Chance of precipitation is 20%.

    Low: 27 °F

    Slight Chance
    Rain/Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 45. Light west southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 45 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    Low: 31 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain and snow before 9am, then a slight chance of rain between 9am and noon.  Snow level rising to 8800 feet in the afternoon. Partly sunny, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain/Snow
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain after midnight.  Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy
    then Slight
    Chance Rain

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. West southwest wind around 10 mph.
Saturday
A 40 percent chance of rain after 1pm. Increasing clouds, with a high near 50. Breezy, with a west southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 47 mph.
Saturday Night
A slight chance of rain and snow before midnight. Partly cloudy, with a low around 27. West northwest wind 13 to 18 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 34 mph. Chance of precipitation is 20%.
Sunday
Sunny, with a high near 45. Light west southwest wind increasing to 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 31. Southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Monday
Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
A slight chance of rain and snow before 9am, then a slight chance of rain between 9am and noon. Snow level rising to 8800 feet in the afternoon. Partly sunny, with a high near 51.
Tuesday Night
A slight chance of rain after midnight. Mostly cloudy, with a low around 37.
Wednesday
A chance of rain, mainly before noon. Snow level 8500 feet lowering to 7900 feet in the afternoon . Partly sunny, with a high near 51.
Wednesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 25.
Thursday
Mostly sunny, with a high near 40.
Thursday Night
Mostly clear, with a low around 23.
Friday
Sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
28 Miles SSW Shoup ID
 45°N 114.5°W (Elev. 7444 ft)
2:41 pm MDT Mar 20, 2026
10pm MDT Mar 20, 2026-6pm MDT Mar 27, 2026
 
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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