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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

31°F

-1°C

Humidity 93%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility 0.87 mi
Last update 15 Apr 01:00 AM MDT
Extended Forecast for

Lost Trail Pass MT

Winter Weather Advisory April 15, 03:00pm until April 16, 09:00am
Click here for hazard details and duration
Winter Weather Advisory

  • Overnight

    Overnight: Snow likely, mainly after 5am. Mostly cloudy, with a low around 32. South southwest wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 32 °F

    Snow Likely

  • Wednesday

    Wednesday: Snow before 2pm, then rain and snow showers likely between 2pm and 5pm, then snow after 5pm. Some thunder is also possible. High near 42. South southwest wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 42 °F

    Snow then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow, mainly before 9pm. The snow could be heavy at times. Low around 19. West wind 5 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 19 °F

    Heavy Snow
    then Snow
    Likely

  • Thursday

    Thursday: Snow. High near 29. Northwest wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 29 °F

    Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 19. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.

    Low: 19 °F

    Chance Snow

  • Friday

    Friday: Snow likely, mainly after noon. Mostly cloudy, with a high near 34. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Snow Likely

  • Friday Night

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

    Low: 17 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

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

    Low: 25 °F

    Partly Cloudy

Detailed Forecast

Overnight
Snow likely, mainly after 5am. Mostly cloudy, with a low around 32. South southwest wind around 7 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Wednesday
Snow before 2pm, then rain and snow showers likely between 2pm and 5pm, then snow after 5pm. Some thunder is also possible. High near 42. South southwest wind 6 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Wednesday Night
Snow, mainly before 9pm. The snow could be heavy at times. Low around 19. West wind 5 to 10 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Thursday
Snow. High near 29. Northwest wind 6 to 11 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 19. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.
Friday
Snow likely, mainly after noon. Mostly cloudy, with a high near 34. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Friday Night
Mostly clear, with a low around 17.
Saturday
Sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 25.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
A slight chance of rain and snow. Mostly sunny, with a high near 59.
Monday Night
A slight chance of rain and snow. Partly cloudy, with a low around 35.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 60.
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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:
12:22 am MDT Apr 15, 2026
Forecast Valid:
1am 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