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

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 91%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility 1.24 mi
Last update 15 Apr 04:30 AM MDT
Extended Forecast for

3 Miles W Gibbonsville ID

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

  • Overnight

    Overnight: A chance of rain and snow showers. Snow level 5700 feet. Mostly cloudy, with a low around 36. South southwest wind around 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 36 °F

    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow showers, becoming all rain after 1pm. Some thunder is also possible. Snow level 5800 feet rising to 6600 feet in the afternoon. High near 46. South wind 5 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow showers, becoming all snow after 7pm. Low around 23. West northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 23 °F

    Rain/Snow
    then Snow
    Showers
    Likely

  • Thursday

    Thursday: Snow showers. High near 32. Northwest wind 5 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.

    High: 32 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A 30 percent chance of snow showers. Mostly cloudy, with a low around 23. Northwest wind 6 to 11 mph becoming light west northwest after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.

    Low: 23 °F

    Chance Snow
    Showers

  • Friday

    Friday: A 50 percent chance of snow showers. Partly sunny, with a high near 37. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Chance Snow
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 49.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of rain and snow showers. Snow level 5700 feet. Mostly cloudy, with a low around 36. South southwest wind around 6 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Wednesday
Rain and snow showers, becoming all rain after 1pm. Some thunder is also possible. Snow level 5800 feet rising to 6600 feet in the afternoon. High near 46. South wind 5 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday Night
Rain and snow showers, becoming all snow after 7pm. Low around 23. West northwest wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Thursday
Snow showers. High near 32. Northwest wind 5 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
Thursday Night
A 30 percent chance of snow showers. Mostly cloudy, with a low around 23. Northwest wind 6 to 11 mph becoming light west northwest after midnight. Winds could gust as high as 26 mph. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow showers. Partly sunny, with a high near 37. New snow accumulation of less than a half inch possible.
Friday Night
Mostly clear, with a low around 22.
Saturday
Sunny, with a high near 49.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 57.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
A slight chance of rain. Mostly sunny, with a high near 62.
Monday Night
A slight chance of rain and snow. Partly cloudy, with a low around 38.
Tuesday
A chance of rain and snow. Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Gibbonsville ID
 45.55°N 113.97°W (Elev. 5400 ft)
Last Update:
2:01 am MDT Apr 15, 2026
Forecast Valid:
4am 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