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

40°F

4°C

Humidity 44%
Wind Speed NNE 10 MPH
Barometer NA
Dewpoint 19°F (-7°C)
Visibility 1.24 mi
Wind Chill34°F (1°C)
Last update 02 Mar 02:45 PM MST
Extended Forecast for

Lost Trail Pass MT

  • This Afternoon

    This Afternoon: A 20 percent chance of snow. Partly sunny, with a high near 42. North northwest wind around 6 mph.

    High: 42 °F

    Slight Chance
    Snow

  • Tonight

    Tonight: Mostly clear, with a low around 23. North northwest wind around 5 mph becoming calm in the evening.

    Low: 23 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 46. South wind 5 to 8 mph, with gusts as high as 20 mph.

    High: 46 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 28. South wind around 6 mph, with gusts as high as 18 mph.

    Low: 28 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow, mainly after 11am. High near 42. South southwest wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow. Low around 28. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 28 °F

    Snow

  • Thursday

    Thursday: Snow. High near 34. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Snow

  • Thursday Night

    Thursday Night: Snow likely. Mostly cloudy, with a low around 23.

    Low: 23 °F

    Snow Likely

  • Friday

    Friday: A chance of snow. Mostly cloudy, with a high near 35.

    High: 35 °F

    Chance Snow

Detailed Forecast

This Afternoon
A 20 percent chance of snow. Partly sunny, with a high near 42. North northwest wind around 6 mph.
Tonight
Mostly clear, with a low around 23. North northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 46. South wind 5 to 8 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 28. South wind around 6 mph, with gusts as high as 18 mph.
Wednesday
Snow, mainly after 11am. High near 42. South southwest wind 6 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow. Low around 28. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow. High near 34. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Thursday Night
Snow likely. Mostly cloudy, with a low around 23.
Friday
A chance of snow. Mostly cloudy, with a high near 35.
Friday Night
A slight chance of snow. Partly cloudy, with a low around 22.
Saturday
A chance of snow. Partly sunny, with a high near 40.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 32.
Sunday
A chance of snow. Partly sunny, with a high near 43.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 29.
Monday
Snow likely. Mostly cloudy, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lost Trail Pass MT
 45.7°N 113.94°W (Elev. 6598 ft)
Last Update:
1:01 pm MST Mar 2, 2026
Forecast Valid:
3pm MST Mar 2, 2026-6pm MDT Mar 9, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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