Early Heat Wave in the West; Fire Concerns in the 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. Elevated to critical fire weather conditions are expected today across the High Plains and southern Plains. Lake effect snow downwind of the Great Lakes will taper off today. Read More >

Current conditions at

Lost Trail Pass (ITD87)

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

NA

41°F

5°C

Humidity 45%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 21°F (-6°C)
Visibility 1.24 mi
Last update 17 Mar 09:00 AM MDT
Extended Forecast for

3 Miles SW Lost Trail Pass MT

  • Today

    Today: Increasing clouds, with a high near 44. West wind around 9 mph, with gusts as high as 22 mph.

    High: 44 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 32. West wind around 7 mph becoming south after midnight. Winds could gust as high as 18 mph.

    Low: 32 °F

    Decreasing
    Clouds

  • Wednesday

    Wednesday: Sunny, with a high near 51. South wind 8 to 10 mph, with gusts as high as 25 mph.

    High: 51 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 33. South wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 54. South wind 6 to 9 mph, with gusts as high as 24 mph.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: A slight chance of rain after midnight.  Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then a chance of rain after noon.  Snow level 8700 feet lowering to 7700 feet in the afternoon . Partly sunny, with a high near 48.

    High: 48 °F

    Chance
    Rain/Snow
    then Chance
    Rain

Detailed Forecast

Today
Increasing clouds, with a high near 44. West wind around 9 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 32. West wind around 7 mph becoming south after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 51. South wind 8 to 10 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 33. South wind 7 to 9 mph, with gusts as high as 21 mph.
Thursday
Sunny, with a high near 54. South wind 6 to 9 mph, with gusts as high as 24 mph.
Thursday Night
Mostly clear, with a low around 35.
Friday
Sunny, with a high near 57.
Friday Night
A slight chance of rain after midnight. Partly cloudy, with a low around 36.
Saturday
A chance of rain before 9am, then a chance of rain and snow between 9am and noon, then a chance of rain after noon. Snow level 8700 feet lowering to 7700 feet in the afternoon . Partly sunny, with a high near 48.
Saturday Night
A slight chance of rain and snow before 3am, then a slight chance of snow. Partly cloudy, with a low around 26.
Sunday
A slight chance of rain and snow. Mostly sunny, with a high near 43.
Sunday Night
A slight chance of rain and snow. Partly cloudy, with a low around 26.
Monday
A chance of rain and snow. Mostly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Lost Trail Pass MT
 45.67°N 114°W (Elev. 7480 ft)
2:01 am MDT Mar 17, 2026
9am MDT Mar 17, 2026-6pm MDT Mar 23, 2026
 
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Additional Resources

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