Heat Wave Continues in the West; Critical Fire Weather Conditions in the High Plains

An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Critical fire weather conditions will continue over the next couple of days across portions of the High Plains as gusty winds and dry conditions persist. Read More >

Current conditions at

Lost Trail Pass (ITD87)

Lat: 45.69302°NLon: 113.94835°WElev: 7090.0ft.

NA

57°F

14°C

Humidity 15%
Wind Speed NW 2 MPH
Barometer NA
Dewpoint 10°F (-12°C)
Visibility 1.24 mi
Last update 18 Mar 03:45 PM MDT
Extended Forecast for

6 Miles W Lost Trail Pass MT

  • Tonight

    Tonight: Partly cloudy, with a low around 34. South wind around 7 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 54. West southwest wind 6 to 9 mph, with gusts as high as 23 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. South southwest wind 6 to 8 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57. South wind 6 to 11 mph, with gusts as high as 29 mph.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight.  Partly cloudy, with a low around 37. South southwest wind 5 to 10 mph, with gusts as high as 26 mph.

    Low: 37 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: Rain likely before 9am, then rain and snow likely.  Mostly cloudy, with a high near 46. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of snow before midnight.  Partly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 34. South wind around 7 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 54. West southwest wind 6 to 9 mph, with gusts as high as 23 mph.
Thursday Night
Mostly clear, with a low around 37. South southwest wind 6 to 8 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 57. South wind 6 to 11 mph, with gusts as high as 29 mph.
Friday Night
A 20 percent chance of rain after midnight. Partly cloudy, with a low around 37. South southwest wind 5 to 10 mph, with gusts as high as 26 mph.
Saturday
Rain likely before 9am, then rain and snow likely. Mostly cloudy, with a high near 46. Chance of precipitation is 70%. Little or no snow accumulation expected.
Saturday Night
A 30 percent chance of snow before midnight. Partly cloudy, with a low around 25. New snow accumulation of less than a half inch possible.
Sunday
Sunny, with a high near 44.
Sunday Night
Partly cloudy, with a low around 29.
Monday
A slight chance of snow after noon. Partly sunny, with a high near 47.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 32.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 51.
Tuesday Night
Rain and snow likely. Mostly cloudy, with a low around 33.
Wednesday
Snow likely. Mostly cloudy, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W Lost Trail Pass MT
 45.71°N 114.07°W (Elev. 7100 ft)
2:01 pm MDT Mar 18, 2026
4pm MDT Mar 18, 2026-6pm MDT Mar 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database