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

35°F

2°C

Humidity 51%
Wind Speed NE 3 MPH
Barometer NA
Dewpoint 18°F (-8°C)
Visibility 1.24 mi
Last update 09 Apr 02:15 AM MDT
Extended Forecast for

3 Miles SW Lost Trail Pass MT

  • Overnight

    Overnight: Partly cloudy, with a low around 28. Light west wind.

    Low: 28 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 51. Calm wind becoming west around 6 mph in the afternoon.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. Northwest wind around 6 mph becoming east southeast after midnight.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: A 30 percent chance of rain after noon. Snow level rising to 9200 feet in the afternoon. Partly sunny, with a high near 56. East southeast wind around 6 mph becoming south in the afternoon.

    High: 56 °F

    Mostly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 36. West southwest wind around 9 mph becoming southeast after midnight. Winds could gust as high as 23 mph. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 36 °F

    Chance Rain
    then Slight
    Chance Rain

  • Saturday

    Saturday: A chance of rain, then showers and possibly a thunderstorm after noon. Snow level 8300 feet. High near 52. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 52 °F

    Chance Rain
    then Showers

  • Saturday Night

    Saturday Night: A chance of rain before 9pm, then a chance of rain and snow between 9pm and 3am, then a chance of snow after 3am. Snow level 8200 feet lowering to 7500 feet after midnight . Mostly cloudy, with a low around 33. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 33 °F

    Chance
    Rain/Snow

  • Sunday

    Sunday: Snow showers before 3pm, then rain and snow showers. Some thunder is also possible. Mostly cloudy, with a high near 44.

    High: 44 °F

    Chance Snow
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Snow. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Snow

Detailed Forecast

Overnight
Partly cloudy, with a low around 28. Light west wind.
Thursday
Sunny, with a high near 51. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 33. Northwest wind around 6 mph becoming east southeast after midnight.
Friday
A 30 percent chance of rain after noon. Snow level rising to 9200 feet in the afternoon. Partly sunny, with a high near 56. East southeast wind around 6 mph becoming south in the afternoon.
Friday Night
A 50 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 36. West southwest wind around 9 mph becoming southeast after midnight. Winds could gust as high as 23 mph. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
A chance of rain, then showers and possibly a thunderstorm after noon. Snow level 8300 feet. High near 52. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of rain before 9pm, then a chance of rain and snow between 9pm and 3am, then a chance of snow after 3am. Snow level 8200 feet lowering to 7500 feet after midnight . Mostly cloudy, with a low around 33. Chance of precipitation is 50%. Little or no snow accumulation expected.
Sunday
Snow showers before 3pm, then rain and snow showers. Some thunder is also possible. Mostly cloudy, with a high near 44.
Sunday Night
Snow. Mostly cloudy, with a low around 31.
Monday
Snow. Cloudy, with a high near 38.
Monday Night
A chance of snow. Mostly cloudy, with a low around 29.
Tuesday
A slight chance of snow. Partly sunny, with a high near 41.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
A chance of snow. Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Lost Trail Pass MT
 45.67°N 114°W (Elev. 7480 ft)
Last Update:
2:01 am MDT Apr 9, 2026
Forecast Valid:
2am MDT Apr 9, 2026-6pm MDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation