National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Lost Trail Pass (ITD87)

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

NA

52°F

11°C

Humidity 28%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 20°F (-7°C)
Visibility 1.24 mi
Last update 06 Apr 03:45 PM MDT
Extended Forecast for

Lost Trail Pass MT

  • Tonight

    Tonight: Partly cloudy, with a low around 33. West northwest wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 50. Light south southwest wind becoming west southwest 10 to 15 mph in the morning. Winds could gust as high as 36 mph.

    High: 50 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 23. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 38 mph.

    Low: 23 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 47. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.

    High: 47 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 27. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 22 mph.

    Low: 27 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of rain after noon. Snow level rising to 8300 feet in the afternoon. Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain before midnight. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 33. West northwest wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 50. Light south southwest wind becoming west southwest 10 to 15 mph in the morning. Winds could gust as high as 36 mph.
Tuesday Night
Mostly clear, with a low around 23. West wind 10 to 15 mph becoming light after midnight. Winds could gust as high as 38 mph.
Wednesday
Sunny, with a high near 47. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 27. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 22 mph.
Thursday
Sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 29.
Friday
A slight chance of rain after noon. Snow level rising to 8300 feet in the afternoon. Mostly sunny, with a high near 57.
Friday Night
A slight chance of rain before midnight. Mostly cloudy, with a low around 35.
Saturday
Rain likely, mainly after noon. Partly sunny, with a high near 56.
Saturday Night
Rain and snow likely. Snow level 9000 feet lowering to 8000 feet after midnight . Mostly cloudy, with a low around 34.
Sunday
Rain and snow. Snow level 7400 feet. Mostly cloudy, with a high near 46.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 29.
Monday
Snow likely. Mostly cloudy, with a high near 40.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lost Trail Pass MT
 45.68°N 113.94°W (Elev. 7077 ft)
Last Update:
2:00 pm MDT Apr 6, 2026
Forecast Valid:
4pm MDT Apr 6, 2026-6pm MDT Apr 13, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation