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

Prolonged dangerous winter storm conditions in the high country of western Montana and north-central Idaho later this week with localized damaging winds

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Hazardous Weather Conditions

Current conditions at

Lost Trail Pass (ITD87)

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

NA

15°F

-9°C

Humidity 70%
Wind Speed SE 1 MPH
Barometer NA
Dewpoint 7°F (-14°C)
Visibility 1.17 mi
Last update 09 Mar 10:15 PM MDT
Extended Forecast for

Lost Trail Pass MT

Winter Storm Watch March 11, 06:00pm until March 14, 12:00pm
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: A 30 percent chance of snow after 5am. Partly cloudy, with a low around 13. West wind 3 to 7 mph. Winds could gust as high as 18 mph. Total nighttime snow accumulation of less than a half inch possible.

    Low: 13 °F

    Partly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: A chance of snow before 9am, then a chance of snow after 10am. Partly sunny, with a high near 25. West northwest wind 5 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

    High: 25 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 11. West northwest wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 30 mph. New snow accumulation of less than a half inch possible.

    Low: 11 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow likely, mainly after noon. Mostly cloudy, with a high near 34. Southwest wind 8 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 34 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: Snow. Low around 30. Southwest wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    Low: 30 °F

    Snow

  • Thursday

    Thursday: Snow. High near 39. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 39 °F

    Snow

  • Thursday Night

    Thursday Night: Rain and snow. Low around 33. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 33 °F

    Rain/Snow

  • Friday

    Friday: Rain and snow, becoming all rain after noon. Cloudy, with a high near 42.

    High: 42 °F

    Rain/Snow
    then Rain

  • Friday Night

    Friday Night: Rain and snow. Cloudy, with a low around 35.

    Low: 35 °F

    Rain/Snow

Detailed Forecast

Tonight
A 30 percent chance of snow after 5am. Partly cloudy, with a low around 13. West wind 3 to 7 mph. Winds could gust as high as 18 mph. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
A chance of snow before 9am, then a chance of snow after 10am. Partly sunny, with a high near 25. West northwest wind 5 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
Tuesday Night
A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 11. West northwest wind 6 to 11 mph becoming south southwest after midnight. Winds could gust as high as 30 mph. New snow accumulation of less than a half inch possible.
Wednesday
Snow likely, mainly after noon. Mostly cloudy, with a high near 34. Southwest wind 8 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday Night
Snow. Low around 30. Southwest wind 11 to 13 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow. High near 39. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
Rain and snow. Low around 33. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday
Rain and snow, becoming all rain after noon. Cloudy, with a high near 42.
Friday Night
Rain and snow. Cloudy, with a low around 35.
Saturday
Rain and snow, becoming all snow after 9am. Cloudy, with a high near 39.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 23.
Sunday
A chance of snow. Mostly cloudy, with a high near 38.
Sunday Night
Snow likely. Cloudy, with a low around 31.
Monday
Rain and snow likely. Mostly cloudy, with a high near 45.
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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:
2:01 pm MDT Mar 9, 2026
Forecast Valid:
10pm MDT Mar 9, 2026-6pm MDT Mar 16, 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