Early Spring Heat Wave in the Southwest U.S.; Critical Fire Weather in the Central Rockies and Plains

An unusual early Spring heat wave will continue much above-normal temperatures over the Southwest U.S. through early next week. Many locations are likely to set records for the highest-ever March temperature. Periods of critical fire weather will persist from the central Rockies to the central Plains through Saturday as gusty winds and low relative humidity continue. Read More >

Current conditions at

Lost Trail Pass (ITD87)

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

NA

58°F

14°C

Humidity 19%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility 1.24 mi
Last update 19 Mar 04:30 PM MDT
Extended Forecast for

13 Miles WSW Lost Trail Pass MT

  • Tonight

    Tonight: Mostly clear, with a low around 39. South southwest wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 59. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 59 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 39. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of rain before 9am, then rain, possibly mixed with snow.  High near 48. Light west southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 29 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow
    then
    Rain/Snow

  • Saturday Night

    Saturday Night: A 20 percent chance of snow before midnight.  Partly cloudy, with a low around 26. West northwest wind 6 to 11 mph becoming light west  after midnight. Winds could gust as high as 24 mph.

    Low: 26 °F

    Slight Chance
    Snow then
    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 39. South southwest wind 5 to 9 mph, with gusts as high as 20 mph.
Friday
Sunny, with a high near 59. Southwest wind 6 to 13 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 39. South southwest wind 5 to 9 mph, with gusts as high as 21 mph.
Saturday
A chance of rain before 9am, then rain, possibly mixed with snow. High near 48. Light west southwest wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 29 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Saturday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 26. West northwest wind 6 to 11 mph becoming light west after midnight. Winds could gust as high as 24 mph.
Sunday
Sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
A slight chance of rain and snow before 9am, then a chance of rain. Partly sunny, with a high near 52.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 36.
Wednesday
Rain and snow likely. Mostly cloudy, with a high near 46.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 23.
Thursday
A slight chance of snow. Mostly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles WSW Lost Trail Pass MT
 45.63°N 114.17°W (Elev. 6467 ft)
2:11 pm MDT Mar 19, 2026
4pm MDT Mar 19, 2026-6pm MDT Mar 26, 2026
 
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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