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

Dangerous Cold and Gusty Winds Anticipated This Weekend

A significant arctic outbreak will bring frigid temperatures and dangerously cold wind chills to the Northeast and Mid-Atlantic this weekend. Strong winds which could produce tree damage and power outages, and periods of snow squalls are also possible. Relief from this cold and a warming trend is forecast to commence by the beginning to middle of next week. Read More >

Current conditions at

Lost Trail Pass (ITD87)

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

NA

30°F

-1°C

Humidity 79%
Wind Speed S 6 MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility 1.24 mi
Wind Chill24°F (-4°C)
Last update 05 Feb 06:45 AM MST
Extended Forecast for

Lost Trail Pass MT

  • Today

    Today: Sunny, with a high near 44. South wind around 6 mph becoming calm in the afternoon.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. Calm wind becoming south around 5 mph after midnight.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 44. South wind around 6 mph.

    High: 44 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27. Light south southwest wind.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 43. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of snow before 2pm, then a chance of rain and snow between 2pm and 5pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 42. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of rain before 8pm, then snow likely. Mostly cloudy, with a low around 29.

    Low: 29 °F

    Rain/Snow
    Likely then
    Snow Likely

  • Monday

    Monday: Snow. Mostly cloudy, with a high near 33.

    High: 33 °F

    Snow

Detailed Forecast

Today
Sunny, with a high near 44. South wind around 6 mph becoming calm in the afternoon.
Tonight
Mostly clear, with a low around 27. Calm wind becoming south around 5 mph after midnight.
Friday
Sunny, with a high near 44. South wind around 6 mph.
Friday Night
Mostly cloudy, with a low around 27. Light south southwest wind.
Saturday
Mostly sunny, with a high near 43. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 28.
Sunday
A chance of snow before 2pm, then a chance of rain and snow between 2pm and 5pm, then a chance of rain after 5pm. Mostly cloudy, with a high near 42. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Sunday Night
A chance of rain before 8pm, then snow likely. Mostly cloudy, with a low around 29.
Monday
Snow. Mostly cloudy, with a high near 33.
Monday Night
A chance of snow, mainly before 11pm. Partly cloudy, with a low around 17.
Tuesday
A chance of snow. Partly sunny, with a high near 30.
Tuesday Night
A slight chance of snow. Mostly cloudy, with a low around 16.
Wednesday
A chance of snow. Partly sunny, with a high near 30.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lost Trail Pass MT
 45.7°N 113.94°W (Elev. 6598 ft)
Last Update:
1:01 am MST Feb 5, 2026
Forecast Valid:
7am MST Feb 5, 2026-6pm MST Feb 11, 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