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

Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Lost Trail Pass (ITD87)

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

NA

36°F

2°C

Humidity 100%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility 1.24 mi
Last update 11 Apr 08:00 PM MDT
Extended Forecast for

Lost Trail Pass MT

  • Tonight

    Tonight: A 30 percent chance of rain before 9pm. Partly cloudy, with a low around 31. West southwest wind around 5 mph becoming light and variable in the evening.

    Low: 31 °F

    Chance Rain
    then Partly
    Cloudy

  • Sunday

    Sunday: A chance of rain and snow between 9am and noon, then rain. Some thunder is also possible. High near 50. South southeast wind 3 to 7 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 50 °F

    Chance
    Rain/Snow
    then Showers

  • Sunday Night

    Sunday Night: Rain and snow showers before 9pm, then rain and snow between 9pm and midnight, then a chance of snow after midnight. Some thunder is also possible. Low around 31. South southwest wind 3 to 6 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 31 °F

    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: Snow. High near 42. South southwest wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    High: 42 °F

    Snow

  • Monday Night

    Monday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 30. West wind 3 to 7 mph. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Chance Snow

  • Tuesday

    Tuesday: A 40 percent chance of snow, mainly before noon. Partly sunny, with a high near 44. New snow accumulation of less than a half inch possible.

    High: 44 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A 50 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 31. New snow accumulation of less than one inch possible.

    Low: 31 °F

    Slight Chance
    Snow then
    Chance Snow

  • Wednesday

    Wednesday: Snow. Cloudy, with a high near 39.

    High: 39 °F

    Snow

  • Wednesday Night

    Wednesday Night: Snow. Cloudy, with a low around 22.

    Low: 22 °F

    Snow

Detailed Forecast

Tonight
A 30 percent chance of rain before 9pm. Partly cloudy, with a low around 31. West southwest wind around 5 mph becoming light and variable in the evening.
Sunday
A chance of rain and snow between 9am and noon, then rain. Some thunder is also possible. High near 50. South southeast wind 3 to 7 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Rain and snow showers before 9pm, then rain and snow between 9pm and midnight, then a chance of snow after midnight. Some thunder is also possible. Low around 31. South southwest wind 3 to 6 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Monday
Snow. High near 42. South southwest wind 6 to 9 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 30. West wind 3 to 7 mph. Winds could gust as high as 21 mph. New snow accumulation of less than a half inch possible.
Tuesday
A 40 percent chance of snow, mainly before noon. Partly sunny, with a high near 44. New snow accumulation of less than a half inch possible.
Tuesday Night
A 50 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 31. New snow accumulation of less than one inch possible.
Wednesday
Snow. Cloudy, with a high near 39.
Wednesday Night
Snow. Cloudy, with a low around 22.
Thursday
Snow. Cloudy, with a high near 30.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 17.
Friday
A chance of snow. Partly sunny, with a high near 36.
Friday Night
Partly cloudy, with a low around 19.
Saturday
Mostly sunny, with a high near 46.
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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:
2:00 pm MDT Apr 11, 2026
Forecast Valid:
8pm MDT Apr 11, 2026-6pm MDT Apr 18, 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