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

Extremely Critical Fire Weather in the Central Plains; Active Pattern in the West

Gusty to high winds and low relative humidity will bring critical to extremely critical fire weather conditions to the central and southern Plains today into Wednesday. Use caution with any potential ignition sources. Two Pacific storms will impact the western U.S. into Wednesday with gusty winds, low elevation rain and heavy mountain snow. Read More >

Hazardous Weather Conditions

Current conditions at

Lost Trail Pass (ITD87)

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

light snow

23°F

-5°C

Humidity 52%
Wind Speed W 5 MPH
Barometer NA
Dewpoint 8°F (-13°C)
Visibility 1.24 mi
Wind Chill17°F (-8°C)
Last update 17 Feb 04:30 PM MST
Extended Forecast for

6 Miles W Lost Trail Pass MT

Winter Weather Advisory February 18, 12:00am until February 18, 08:00pm
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: A 30 percent chance of snow before 5pm. Mostly sunny, with a high near 25. Southwest wind around 14 mph, with gusts as high as 20 mph. Total daytime snow accumulation of around an inch possible.

    High: 25 °F

    Chance Snow

  • Tonight

    Tonight: A slight chance of snow before 9pm, then a chance of snow after 2am. Mostly cloudy, with a low around 14. South wind 7 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.

    Low: 14 °F

    Chance Snow

  • Wednesday

    Wednesday: Snow, mainly before 4pm. High near 20. South wind around 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 20 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 11pm. Mostly cloudy, with a low around 6. Wind chill values as low as -2. West northwest wind 5 to 8 mph becoming south southwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 6 °F

    Snow Likely
    then Chance
    Snow

  • Thursday

    Thursday: A 50 percent chance of snow, mainly after 11am. Partly sunny, with a high near 21. South southwest wind 5 to 7 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.

    High: 21 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 8. New snow accumulation of less than a half inch possible.

    Low: 8 °F

    Chance Snow

  • Friday

    Friday: Snow likely, mainly after 11am. Mostly cloudy, with a high near 20. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 20 °F

    Snow Likely

  • Friday Night

    Friday Night: A slight chance of snow before 11pm. Partly cloudy, with a low around 6.

    Low: 6 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 27.

    High: 27 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of snow before 5pm. Mostly sunny, with a high near 25. Southwest wind around 14 mph, with gusts as high as 20 mph. Total daytime snow accumulation of around an inch possible.
Tonight
A slight chance of snow before 9pm, then a chance of snow after 2am. Mostly cloudy, with a low around 14. South wind 7 to 10 mph. Chance of precipitation is 40%. New snow accumulation of less than one inch possible.
Wednesday
Snow, mainly before 4pm. High near 20. South wind around 11 mph becoming west northwest in the afternoon. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 6. Wind chill values as low as -2. West northwest wind 5 to 8 mph becoming south southwest after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
A 50 percent chance of snow, mainly after 11am. Partly sunny, with a high near 21. South southwest wind 5 to 7 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 8. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after 11am. Mostly cloudy, with a high near 20. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
A slight chance of snow before 11pm. Partly cloudy, with a low around 6.
Saturday
Sunny, with a high near 27.
Saturday Night
Mostly cloudy, with a low around 13.
Sunday
A slight chance of snow. Mostly sunny, with a high near 34.
Sunday Night
A chance of snow. Partly cloudy, with a low around 20.
Monday
Snow likely. Mostly cloudy, with a high near 35.
Monday Night
Snow likely. Mostly cloudy, with a low around 22.
Tuesday
Snow. Mostly cloudy, with a high near 33.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles W Lost Trail Pass MT
 45.71°N 114.07°W (Elev. 7100 ft)
Last Update:
2:12 pm MST Feb 17, 2026
Forecast Valid:
4pm MST Feb 17, 2026-6pm MST Feb 24, 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