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.

Rain

37°F

3°C

Humidity 93%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility 1.24 mi
Last update 11 Apr 04:15 PM MDT
Extended Forecast for

Lost Trail Pass MT

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Snow level 8100 feet. Mostly cloudy, with a high near 49. West southwest wind around 6 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 49 °F

    Showers
    Likely

  • Tonight

    Tonight: A 40 percent chance of rain before 9pm. Snow level 8000 feet lowering to 7100 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 30. West wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Chance Rain
    then Partly
    Cloudy

  • Sunday

    Sunday: Rain and snow before 3pm, then rain between 3pm and 5pm, then rain, possibly mixed with snow after 5pm. Some thunder is also possible. Snow level rising to 8100 feet in the afternoon. High near 48. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Low around 30. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    Low: 30 °F

    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: Snow. High near 40. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 40 °F

    Snow

  • Monday Night

    Monday Night: A 50 percent chance of snow. Mostly cloudy, with a low around 29. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance Snow

  • Tuesday

    Tuesday: A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 42. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: A chance of snow after midnight. Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Wednesday

    Wednesday: Snow. Cloudy, with a high near 37.

    High: 37 °F

    Snow

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Snow level 8100 feet. Mostly cloudy, with a high near 49. West southwest wind around 6 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tonight
A 40 percent chance of rain before 9pm. Snow level 8000 feet lowering to 7100 feet after midnight . Mostly cloudy, then gradually becoming mostly clear, with a low around 30. West wind around 5 mph becoming calm in the evening.
Sunday
Rain and snow before 3pm, then rain between 3pm and 5pm, then rain, possibly mixed with snow after 5pm. Some thunder is also possible. Snow level rising to 8100 feet in the afternoon. High near 48. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Low around 30. South southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday
Snow. High near 40. Southwest wind 3 to 8 mph. Winds could gust as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday Night
A 50 percent chance of snow. Mostly cloudy, with a low around 29. New snow accumulation of less than a half inch possible.
Tuesday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 42. New snow accumulation of less than a half inch possible.
Tuesday Night
A chance of snow after midnight. Mostly cloudy, with a low around 30.
Wednesday
Snow. Cloudy, with a high near 37.
Wednesday Night
Snow. Cloudy, with a low around 22.
Thursday
Snow. Cloudy, with a high near 29.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 16.
Friday
A chance of snow. Partly sunny, with a high near 34.
Friday Night
Partly cloudy, with a low around 18.
Saturday
Mostly sunny, with a high near 44.
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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:
2:00 pm MDT Apr 11, 2026
Forecast Valid:
4pm MDT Apr 11, 2026-6pm MDT Apr 18, 2026
 
Forecast Discussion
 
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Additional Resources

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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