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

24°F

-4°C

Humidity 91%
Wind Speed WSW 2 MPH
Barometer NA
Dewpoint 22°F (-6°C)
Visibility 1.24 mi
Last update 06 Mar 10:30 PM MST
Extended Forecast for

Lost Trail Pass MT

  • Tonight

    Tonight: A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a low around 20. Calm wind. Total nighttime snow accumulation of less than a half inch possible.

    Low: 20 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Snow likely before 3pm, then a chance of rain and snow. Mostly cloudy, with a high near 38. Southwest wind 3 to 7 mph. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    High: 38 °F

    Snow Likely
    then
    Rain/Snow
    Likely

  • Saturday Night

    Saturday Night: A chance of rain and snow before 8pm, then a chance of rain between 8pm and 11pm. Snow level 7700 feet lowering to 7100 feet after midnight . Mostly cloudy, with a low around 29. Southwest wind around 6 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 29 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Sunday

    Sunday: A 40 percent chance of snow after 11am. Increasing clouds, with a high near 43. Southwest wind 7 to 14 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Chance Snow

  • Sunday Night

    Sunday Night: Snow likely. Mostly cloudy, with a low around 28. West southwest wind 10 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 28 °F

    Snow Likely

  • Monday

    Monday: Snow likely. Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Snow Likely

  • Monday Night

    Monday Night: Snow likely. Mostly cloudy, with a low around 16. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 16 °F

    Snow Likely

  • Tuesday

    Tuesday: Snow. Mostly cloudy, with a high near 25.

    High: 25 °F

    Snow

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 16.

    Low: 16 °F

    Chance Snow

Detailed Forecast

Tonight
A 30 percent chance of snow, mainly after 5am. Mostly cloudy, with a low around 20. Calm wind. Total nighttime snow accumulation of less than a half inch possible.
Saturday
Snow likely before 3pm, then a chance of rain and snow. Mostly cloudy, with a high near 38. Southwest wind 3 to 7 mph. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
A chance of rain and snow before 8pm, then a chance of rain between 8pm and 11pm. Snow level 7700 feet lowering to 7100 feet after midnight . Mostly cloudy, with a low around 29. Southwest wind around 6 mph, with gusts as high as 18 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday
A 40 percent chance of snow after 11am. Increasing clouds, with a high near 43. Southwest wind 7 to 14 mph, with gusts as high as 34 mph. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely. Mostly cloudy, with a low around 28. West southwest wind 10 to 14 mph, with gusts as high as 37 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Monday
Snow likely. Mostly cloudy, with a high near 33. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday Night
Snow likely. Mostly cloudy, with a low around 16. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Tuesday
Snow. Mostly cloudy, with a high near 25.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 16.
Wednesday
Snow likely. Mostly cloudy, with a high near 36.
Wednesday Night
Snow likely. Mostly cloudy, with a low around 29.
Thursday
Snow likely. Mostly cloudy, with a high near 40.
Thursday Night
Snow likely. Mostly cloudy, with a low around 23.
Friday
Snow likely. Mostly cloudy, with a high near 34.
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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:
1:00 pm MST Mar 6, 2026
Forecast Valid:
10pm MST Mar 6, 2026-6pm MDT Mar 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