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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Lost Trail Pass (ITD87)

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

NA

42°F

6°C

Humidity 69%
Wind Speed S 7 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility 1.24 mi
Wind Chill38°F (3°C)
Last update 21 Mar 09:15 AM MDT
Extended Forecast for

Lost Trail Pass MT

  • Today

    Today: Rain likely, possibly mixing with snow after 2pm, then gradually ending. Snow level 8800 feet lowering to 7100 feet in the afternoon . Partly sunny, with a high near 47. Light west wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 32 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 47 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Tonight

    Tonight: Mostly clear, with a low around 24. West northwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 32 mph.

    Low: 24 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 45. Calm wind becoming west southwest around 6 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 45 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 27. West wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of snow before 9am, then a chance of rain and snow between 9am and noon, then rain likely after noon. Snow level rising to 8600 feet in the afternoon. Mostly cloudy, with a high near 51. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 51 °F

    Chance
    Rain/Snow
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain and snow before noon, then a chance of rain between noon and 3pm, then a chance of snow after 3pm. Snow level 7700 feet lowering to 7100 feet in the afternoon . Partly sunny, with a high near 48.

    High: 48 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Rain likely, possibly mixing with snow after 2pm, then gradually ending. Snow level 8800 feet lowering to 7100 feet in the afternoon . Partly sunny, with a high near 47. Light west wind increasing to 8 to 13 mph in the morning. Winds could gust as high as 32 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Tonight
Mostly clear, with a low around 24. West northwest wind 5 to 10 mph becoming light west in the evening. Winds could gust as high as 32 mph.
Sunday
Sunny, with a high near 45. Calm wind becoming west southwest around 6 mph in the afternoon. Winds could gust as high as 18 mph.
Sunday Night
Partly cloudy, with a low around 27. West wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 50. Calm wind becoming west southwest 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.
Monday Night
Mostly cloudy, with a low around 33.
Tuesday
A chance of snow before 9am, then a chance of rain and snow between 9am and noon, then rain likely after noon. Snow level rising to 8600 feet in the afternoon. Mostly cloudy, with a high near 51. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tuesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 36.
Wednesday
A chance of rain and snow before noon, then a chance of rain between noon and 3pm, then a chance of snow after 3pm. Snow level 7700 feet lowering to 7100 feet in the afternoon . Partly sunny, with a high near 48.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 25.
Thursday
A slight chance of snow. Mostly sunny, with a high near 39.
Thursday Night
Partly cloudy, with a low around 21.
Friday
Mostly sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lost Trail Pass MT
 45.68°N 113.94°W (Elev. 7077 ft)
Last Update:
2:01 am MDT Mar 21, 2026
Forecast Valid:
9am MDT Mar 21, 2026-6pm MDT Mar 27, 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