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

38°F

3°C

Humidity 49%
Wind Speed SE 1 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility 1.24 mi
Last update 18 Mar 04:00 AM MDT
Extended Forecast for

10 Miles WSW Lost Trail Pass MT

  • Today

    Today: Sunny, with a high near 52. West southwest wind 6 to 9 mph, with gusts as high as 23 mph.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 35. South southwest wind 3 to 7 mph. Winds could gust as high as 20 mph.

    Low: 35 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 55. Southwest wind 5 to 9 mph, with gusts as high as 24 mph.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. South wind 5 to 8 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 58. South wind 5 to 11 mph, with gusts as high as 26 mph.

    High: 58 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after midnight.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: Rain likely before noon, then rain and snow likely.  Mostly cloudy, with a high near 48. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 48 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A slight chance of snow before midnight.  Partly cloudy, with a low around 26.

    Low: 26 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Sunday

    Sunday: A slight chance of snow after noon.  Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny
    then Slight
    Chance Snow

Detailed Forecast

Today
Sunny, with a high near 52. West southwest wind 6 to 9 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 35. South southwest wind 3 to 7 mph. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 55. Southwest wind 5 to 9 mph, with gusts as high as 24 mph.
Thursday Night
Partly cloudy, with a low around 37. South wind 5 to 8 mph, with gusts as high as 23 mph.
Friday
Sunny, with a high near 58. South wind 5 to 11 mph, with gusts as high as 26 mph.
Friday Night
A 20 percent chance of rain after midnight. Mostly cloudy, with a low around 38.
Saturday
Rain likely before noon, then rain and snow likely. Mostly cloudy, with a high near 48. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
A slight chance of snow before midnight. Partly cloudy, with a low around 26.
Sunday
A slight chance of snow after noon. Partly sunny, with a high near 44.
Sunday Night
Partly cloudy, with a low around 28.
Monday
A slight chance of snow. Partly sunny, with a high near 48.
Monday Night
A slight chance of snow. Mostly cloudy, with a low around 33.
Tuesday
A chance of rain and snow. Mostly cloudy, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles WSW Lost Trail Pass MT
 45.64°N 114.11°W (Elev. 6841 ft)
2:01 am MDT Mar 18, 2026
4am MDT Mar 18, 2026-6pm MDT Mar 24, 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