Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Lost Trail Pass (ITD87)

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

NA

56°F

13°C

Humidity 58%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility 1.24 mi
Last update 18 Aug 03:00 AM MDT
Extended Forecast for

8 Miles W Lost Trail Pass MT

  • Overnight

    Overnight: Partly cloudy, with a low around 49. Calm wind.

    Low: 49 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 3pm.  Increasing clouds, with a high near 70. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 70 °F

    Sunny then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73. Calm wind becoming west around 6 mph in the afternoon.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 49 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight.  Mostly cloudy, with a low around 54.

    Low: 54 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 49. Calm wind.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 70. Calm wind becoming west 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 47. West northwest wind 5 to 8 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 73. Calm wind becoming west around 6 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 49. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Mostly sunny, with a high near 80.
Friday Night
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 54.
Saturday
A chance of showers and thunderstorms after noon. Partly sunny, with a high near 73.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 49.
Sunday
Sunny, with a high near 70.
Sunday Night
Mostly clear, with a low around 48.
Monday
Sunny, with a high near 72.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Lost Trail Pass MT
 45.71°N 114.1°W (Elev. 7139 ft)
2:01 am MDT Aug 18, 2026
3am MDT Aug 18, 2026-6pm MDT Aug 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database