Prolonged Atmospheric River Will Impact the Northwest Early this Week

A weather system in the Pacific Northwest will produce rain throughout the day, before a potent atmospheric river produces a prolonged round of heavy rainfall, widespread urban and river flooding, and high elevation snow to the region Monday through Wednesday. Showers and thunderstorms may produce isolated damaging winds, a brief tornado, and locally heavy rainfall across parts of Florida today. Read More >

Hazardous Weather Conditions

Current conditions at

Lost Trail Pass (ITD87)

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

light snow

29°F

-2°C

Humidity 93%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility 0.37 mi
Wind Chill23°F (-5°C)
Last update 07 Dec 11:30 PM MST
Extended Forecast for

4 Miles WNW Lost Trail Pass MT

  • Tonight

    Tonight: A 40 percent chance of snow after 3am.  Patchy blowing snow after 1am. Mostly cloudy, with a low around 26. West southwest wind around 17 mph, with gusts as high as 29 mph.  Total nighttime snow accumulation of 3 to 5 inches possible.

    Low: 26 °F

    Chance Snow
    and Patchy
    Blowing Snow

  • Monday

    Monday: Snow, mainly after 11am.  High near 33. West southwest wind 11 to 15 mph, with gusts as high as 29 mph.  Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 33 °F

    Snow

  • Monday Night

    Monday Night: Snow. The snow could be heavy at times.  Patchy blowing snow after 11pm. Low around 29. Southwest wind 13 to 20 mph, with gusts as high as 36 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.

    Low: 29 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times.  Patchy blowing snow between 7am and 11am. High near 34. West wind 11 to 20 mph, with gusts as high as 36 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    High: 34 °F

    Heavy Snow
    and Patchy
    Blowing Snow

  • Tuesday Night

    Tuesday Night: Snow. The snow could be heavy at times.  Low around 26. Southwest wind 6 to 10 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.

    Low: 26 °F

    Heavy Snow

  • Wednesday

    Wednesday: Snow. The snow could be heavy at times.  High near 33. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.

    High: 33 °F

    Heavy Snow

  • Wednesday Night

    Wednesday Night: Snow.  Low around 23. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    Low: 23 °F

    Snow

  • Thursday

    Thursday: Snow likely, mainly before 11am.  Mostly cloudy, with a high near 27.

    High: 27 °F

    Snow Likely

  • Thursday Night

    Thursday Night: A chance of snow.  Mostly cloudy, with a low around 20.

    Low: 20 °F

    Chance Snow

Detailed Forecast

Tonight
A 40 percent chance of snow after 3am. Patchy blowing snow after 1am. Mostly cloudy, with a low around 26. West southwest wind around 17 mph, with gusts as high as 29 mph. Total nighttime snow accumulation of 3 to 5 inches possible.
Monday
Snow, mainly after 11am. High near 33. West southwest wind 11 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Monday Night
Snow. The snow could be heavy at times. Patchy blowing snow after 11pm. Low around 29. Southwest wind 13 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 7 inches possible.
Tuesday
Snow. The snow could be heavy at times. Patchy blowing snow between 7am and 11am. High near 34. West wind 11 to 20 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Tuesday Night
Snow. The snow could be heavy at times. Low around 26. Southwest wind 6 to 10 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New snow accumulation of 5 to 9 inches possible.
Wednesday
Snow. The snow could be heavy at times. High near 33. Chance of precipitation is 100%. New snow accumulation of 7 to 11 inches possible.
Wednesday Night
Snow. Low around 23. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow likely, mainly before 11am. Mostly cloudy, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20.
Friday
A chance of snow. Mostly cloudy, with a high near 30.
Friday Night
A slight chance of snow. Mostly cloudy, with a low around 24.
Saturday
A slight chance of snow. Partly sunny, with a high near 32.
Saturday Night
A slight chance of snow. Mostly cloudy, with a low around 23.
Sunday
A chance of snow. Partly sunny, with a high near 30.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Lost Trail Pass MT
 45.72°N 114.01°W (Elev. 7595 ft)
1:01 pm MST Dec 7, 2025
11pm MST Dec 7, 2025-6pm MST Dec 14, 2025
 
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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