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

42°F

6°C

Humidity 34%
Wind Speed ESE 1 MPH
Barometer NA
Dewpoint 15°F (-9°C)
Visibility 1.24 mi
Last update 08 Apr 10:30 AM MDT
Extended Forecast for

Lost Trail Pass MT

  • Today

    Today: Sunny, with a high near 52. West southwest wind 3 to 8 mph. Winds could gust as high as 22 mph.

    High: 52 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 30. West northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 23 mph.

    Low: 30 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 55. Calm wind becoming west around 6 mph in the afternoon.

    High: 55 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. North northwest wind around 6 mph becoming light and variable in the evening.

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of rain after noon. Partly sunny, with a high near 61. Light and variable wind becoming south around 6 mph in the afternoon.

    High: 61 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 38. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain, then showers and possibly a thunderstorm after noon. High near 59. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 59 °F

    Chance Rain
    then Showers

  • Saturday Night

    Saturday Night: Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Rain and snow. Mostly cloudy, with a high near 45.

    High: 45 °F

    Rain/Snow

Detailed Forecast

Today
Sunny, with a high near 52. West southwest wind 3 to 8 mph. Winds could gust as high as 22 mph.
Tonight
Partly cloudy, with a low around 30. West northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 23 mph.
Thursday
Sunny, with a high near 55. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 32. North northwest wind around 6 mph becoming light and variable in the evening.
Friday
A 20 percent chance of rain after noon. Partly sunny, with a high near 61. Light and variable wind becoming south around 6 mph in the afternoon.
Friday Night
A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 38. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A chance of rain, then showers and possibly a thunderstorm after noon. High near 59. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain likely before 3am, then rain and snow likely. Mostly cloudy, with a low around 35.
Sunday
Rain and snow. Mostly cloudy, with a high near 45.
Sunday Night
Rain and snow likely, becoming all snow after 9pm. Mostly cloudy, with a low around 31.
Monday
Snow likely. Mostly cloudy, with a high near 42.
Monday Night
A chance of snow. Mostly cloudy, with a low around 27.
Tuesday
A slight chance of snow. Mostly sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lost Trail Pass MT
 45.7°N 113.94°W (Elev. 6598 ft)
Last Update:
4:36 am MDT Apr 8, 2026
Forecast Valid:
10am MDT Apr 8, 2026-6pm MDT Apr 14, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation