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Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Lost Trail Pass (ITD87)

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

light snow

30°F

-1°C

Humidity NA
Wind Speed SSW 5 MPH
Barometer NA
Dewpoint N/A
Visibility 1.24 mi
Wind Chill25°F (-4°C)
Last update NA
Extended Forecast for

Lost Trail Pass MT

Winter Weather Advisory April 15, 06:00pm until April 16, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Today

    Today: Snow showers. Some thunder is also possible. High near 40. South southwest wind 7 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.

    High: 40 °F

    Snow Showers

  • Tonight

    Tonight: Snow showers, mainly before 9pm. The snow could be heavy at times. Low around 18. West wind 5 to 9 mph becoming light west northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 18 °F

    Heavy Snow
    then Snow
    Showers
    Likely

  • Thursday

    Thursday: Snow showers. High near 27. Northwest wind 5 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 27 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of snow showers. Mostly cloudy, with a low around 17. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.

    Low: 17 °F

    Chance Snow
    Showers

  • Friday

    Friday: Snow showers likely, mainly after noon. Mostly cloudy, with a high near 32. Calm wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 32 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: Mostly clear, with a low around 17.

    Low: 17 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

Detailed Forecast

Today
Snow showers. Some thunder is also possible. High near 40. South southwest wind 7 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 1 to 2 inches possible.
Tonight
Snow showers, mainly before 9pm. The snow could be heavy at times. Low around 18. West wind 5 to 9 mph becoming light west northwest after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow showers. High near 27. Northwest wind 5 to 10 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
A 40 percent chance of snow showers. Mostly cloudy, with a low around 17. Northwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.
Friday
Snow showers likely, mainly after noon. Mostly cloudy, with a high near 32. Calm wind becoming northwest 5 to 9 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Friday Night
Mostly clear, with a low around 17.
Saturday
Sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Mostly cloudy, with a low around 30.
Monday
A slight chance of rain and snow. Snow level rising to 7900 feet in the afternoon. Mostly sunny, with a high near 56.
Monday Night
A slight chance of rain and snow. Snow level 8200 feet lowering to 7600 feet after midnight . Partly cloudy, with a low around 33.
Tuesday
A chance of rain and snow. Snow level 7400 feet. Partly sunny, with a high near 57.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lost Trail Pass MT
 45.68°N 113.94°W (Elev. 7077 ft)
Last Update:
2:01 am MDT Apr 15, 2026
Forecast Valid:
8am MDT Apr 15, 2026-6pm MDT Apr 21, 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