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. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday 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

54°F

12°C

Humidity 32%
Wind Speed N 0 MPH
Barometer 30.28 in (1025.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Last update 19 Mar 11:56 AM MDT
Extended Forecast for

4 Miles S Salmon ID

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 76. Southwest wind 5 to 10 mph, with gusts as high as 22 mph.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 39. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 76. South wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 76 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain.  Partly sunny, with a high near 63. Light south southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 24 mph.

    High: 63 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 76. Southwest wind 5 to 10 mph, with gusts as high as 22 mph.
Tonight
Partly cloudy, with a low around 39. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 76. South wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 21 mph.
Friday Night
Partly cloudy, with a low around 42. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.
Saturday
A 20 percent chance of rain. Partly sunny, with a high near 63. Light south southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 24 mph.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Mostly cloudy, with a high near 63.
Monday Night
Mostly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 68.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 39.
Wednesday
A chance of rain. Mostly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Salmon ID
 45.12°N 113.89°W (Elev. 4035 ft)
2:01 am MDT Mar 19, 2026
12pm MDT Mar 19, 2026-6pm MDT Mar 25, 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