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

Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Hazardous Weather Conditions

Current conditions at

Lost Trail Pass (ITD87)

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

Rain

35°F

2°C

Humidity 100%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility 0.99 mi
Last update 31 Mar 05:00 PM MDT
Extended Forecast for

Lost Trail Pass MT

Winter Storm Watch April 2, 06:00am until April 3, 06:00am
Click here for hazard details and duration
Winter Storm Watch

  • This Afternoon

    This Afternoon: A chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a high near 43. West wind around 6 mph. Chance of precipitation is 50%. Total daytime snow accumulation of around an inch possible.

    High: 43 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Rain and snow likely before 11pm, then a chance of snow. Mostly cloudy, with a low around 29. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before 3pm, then rain and snow. High near 46. Calm wind becoming south 5 to 7 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 46 °F

    Chance Snow
    then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely before midnight, then snow. Low around 29. South wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 29 °F

    Rain/Snow
    Likely then
    Snow

  • Thursday

    Thursday: Snow. The snow could be heavy at times. High near 32. West northwest wind 6 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 32 °F

    Heavy Snow

  • Thursday Night

    Thursday Night: Snow. Low around 23. Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 23 °F

    Snow

  • Friday

    Friday: A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 39. New snow accumulation of less than a half inch possible.

    High: 39 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a high near 43. West wind around 6 mph. Chance of precipitation is 50%. Total daytime snow accumulation of around an inch possible.
Tonight
Rain and snow likely before 11pm, then a chance of snow. Mostly cloudy, with a low around 29. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
A chance of snow before 3pm, then rain and snow. High near 46. Calm wind becoming south 5 to 7 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely before midnight, then snow. Low around 29. South wind around 6 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Thursday
Snow. The snow could be heavy at times. High near 32. West northwest wind 6 to 13 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Thursday Night
Snow. Low around 23. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday
A 40 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 39. New snow accumulation of less than a half inch possible.
Friday Night
Mostly clear, with a low around 23.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 57.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
A slight chance of rain and snow. Mostly sunny, with a high near 57.
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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:
2:01 pm MDT Mar 31, 2026
Forecast Valid:
5pm MDT Mar 31, 2026-6pm MDT Apr 7, 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