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

75°F

24°C

Humidity 16%
Wind Speed WNW 4 MPH
Barometer 30.15 in (1021.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Last update 19 Mar 04:35 PM MDT
Extended Forecast for

31 Miles WNW Challis ID

  • Tonight

    Tonight: Mostly clear, with a low around 39. South southwest wind around 17 mph, with gusts as high as 23 mph.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 51. West southwest wind 15 to 17 mph, with gusts as high as 24 mph.

    High: 51 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 38. South wind around 16 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Mostly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow before 9am, then a chance of snow.  Partly sunny, with a high near 42. Breezy, with a south southwest wind 16 to 24 mph, with gusts as high as 34 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 42 °F

    Slight Chance
    Rain/Snow
    then Chance
    Snow and
    Breezy

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight.  Partly cloudy, with a low around 24. Breezy, with a west wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.

    Low: 24 °F

    Slight Chance
    Snow and
    Breezy then
    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 39. South southwest wind around 17 mph, with gusts as high as 23 mph.
Friday
Mostly sunny, with a high near 51. West southwest wind 15 to 17 mph, with gusts as high as 24 mph.
Friday Night
Mostly cloudy, with a low around 38. South wind around 16 mph, with gusts as high as 21 mph.
Saturday
A slight chance of rain and snow before 9am, then a chance of snow. Partly sunny, with a high near 42. Breezy, with a south southwest wind 16 to 24 mph, with gusts as high as 34 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Saturday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 24. Breezy, with a west wind 18 to 23 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 31 mph.
Sunday
Sunny, with a high near 40.
Sunday Night
Mostly cloudy, with a low around 27.
Monday
Partly sunny, with a high near 41.
Monday Night
Mostly cloudy, with a low around 32.
Tuesday
A slight chance of snow before 9am, then a slight chance of rain and snow. Partly sunny, with a high near 43.
Tuesday Night
A chance of rain and snow. Snow level 9100 feet. Mostly cloudy, with a low around 35.
Wednesday
A chance of rain and snow. Partly sunny, with a high near 40.
Wednesday Night
A slight chance of snow. Partly cloudy, with a low around 21.
Thursday
Sunny, with a high near 34.
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ABOUT THIS FORECAST

 
Point Forecast:
31 Miles WNW Challis ID
 44.76°N 114.76°W (Elev. 9058 ft)
2:11 pm MDT Mar 19, 2026
4pm MDT Mar 19, 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