Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Periods of critical fire weather will persist from the central Rockies to the central Plains through the weekend as gusty winds and low relative humidity continue. Read More >

Current conditions at

Salmon, Lemhi County Airport (KSMN)

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

Clear

43°F

6°C

Humidity 52%
Wind Speed N 0 MPH
Barometer 30.22 in (1023.37 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Last update 20 Mar 12:50 AM MDT
Extended Forecast for

28 Miles SSW Shoup ID

  • Overnight

    Overnight: Mostly clear, with a low around 39. South southwest wind around 10 mph.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. West southwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. Southwest wind 8 to 13 mph, with gusts as high as 24 mph.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain after noon.  Partly sunny, with a high near 51. Breezy, with a southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 51 °F

    Mostly Sunny
    then Chance
    Rain and
    Breezy

  • Saturday Night

    Saturday Night: A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and midnight.  Mostly cloudy, with a low around 27. West 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.

    High: 45 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 49.

    High: 49 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 39. South southwest wind around 10 mph.
Friday
Sunny, with a high near 59. West southwest wind 10 to 16 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 40. Southwest wind 8 to 13 mph, with gusts as high as 24 mph.
Saturday
A 40 percent chance of rain after noon. Partly sunny, with a high near 51. Breezy, with a southwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 39 mph.
Saturday Night
A slight chance of rain and snow before 9pm, then a slight chance of snow between 9pm and midnight. Mostly cloudy, with a low around 27. West 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.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly cloudy, with a high near 49.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
A slight chance of snow before 9am, then a chance of rain. Snow level rising to 8700 feet in the afternoon. Partly sunny, with a high near 51.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 37.
Wednesday
A chance of rain. Snow level 7800 feet. Partly sunny, with a high near 49.
Wednesday Night
A chance of rain and snow. Partly cloudy, with a low around 24.
Thursday
Sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
28 Miles SSW Shoup ID
 45°N 114.5°W (Elev. 7444 ft)
12:21 am MDT Mar 20, 2026
1am MDT Mar 20, 2026-6pm MDT Mar 26, 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