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

Arctic Air for the Northeast and Mid-Atlantic; Increase Moisture for Pacific Northwest; Active Pattern for Hawaii

An arctic cold front will impact the Great Lakes, Northeast and mid-Atlantic. Snow showers and squalls will accompany this system with increasing winds and falling temperatures. Damaging wind gusts may result in tree damage and power outages. Meanwhile, moisture returns for the Pacific Northwest and Hawaii this weekend with both coverage and intensity of rainfall and higher elevation snows. Read More >

Current conditions at

Lost Trail Pass (ITD87)

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

NA

40°F

4°C

Humidity 58%
Wind Speed SW 5 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility 1.24 mi
Wind Chill36°F (2°C)
Last update 07 Feb 01:15 PM MST
Extended Forecast for

Lost Trail Pass MT

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 39. South southwest wind around 6 mph.

    High: 39 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of snow after 4am. Mostly cloudy, with a low around 28. South southwest wind 5 to 7 mph.

    Low: 28 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Sunday

    Sunday: Snow, mainly after 2pm. High near 36. South wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow
    then Snow

  • Sunday Night

    Sunday Night: Snow. Low around 24. South southwest wind around 9 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 24 °F

    Snow

  • Monday

    Monday: Snow. High near 29. West wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 29 °F

    Snow

  • Monday Night

    Monday Night: A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 12.

    Low: 12 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 29.

    High: 29 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 12.

    Low: 12 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of snow. Mostly sunny, with a high near 30.

    High: 30 °F

    Slight Chance
    Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 39. South southwest wind around 6 mph.
Tonight
A 20 percent chance of snow after 4am. Mostly cloudy, with a low around 28. South southwest wind 5 to 7 mph.
Sunday
Snow, mainly after 2pm. High near 36. South wind 6 to 9 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow. Low around 24. South southwest wind around 9 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Monday
Snow. High near 29. West wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Monday Night
A 20 percent chance of snow before 11pm. Partly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 29.
Tuesday Night
Mostly cloudy, with a low around 12.
Wednesday
A slight chance of snow. Mostly sunny, with a high near 30.
Wednesday Night
Mostly clear, with a low around 10.
Thursday
Sunny, with a high near 29.
Thursday Night
Partly cloudy, with a low around 13.
Friday
A chance of snow. Partly sunny, with a high near 29.
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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:
1:01 pm MST Feb 7, 2026
Forecast Valid:
1pm MST Feb 7, 2026-6pm MST Feb 13, 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