Storms and Heavy Rainfall in the Plains and Southern Appalachians; Hazardous Heat in the South and Southeast

Severe thunderstorms with heavy rainfall will be possible across the southern Appalachians through this evening. Thunderstorms are also expected from the northern/central Plains into portions of the Midwest through Tuesday, and severe storms may produce large hail and damaging wind gusts. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Logan Pass Visitors Center (LGPVC)

Lat: 48.6949°NLon: 113.7169°WElev: 6775.0ft.

NA

54°F

12°C

Humidity 58%
Wind Speed WNW 5 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 40°F (4°C)
Visibility NA
Last update 17 Aug 09:00 AM MDT
Extended Forecast for

10 Miles WSW St Mary MT

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms.  Patchy smoke. Mostly sunny, with a high near 70. West wind around 8 mph.

    High: 70 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before midnight.  Patchy smoke. Partly cloudy, with a low around 53. West wind around 6 mph becoming calm  in the evening.

    Low: 53 °F

    Slight Chance
    T-storms then
    Areas Smoke

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms between 1pm and 5pm.  Patchy smoke. Cloudy, then gradually becoming mostly sunny, with a high near 70. Light west wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 20%.

    High: 70 °F

    Patchy Smoke
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Patchy smoke. Mostly clear, with a low around 53. West southwest wind 5 to 7 mph, with gusts as high as 20 mph.

    Low: 53 °F

    Patchy Smoke

  • Wednesday

    Wednesday: Patchy smoke before 7am. Sunny, with a high near 72. West southwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 72 °F

    Patchy Smoke
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. West southwest wind 5 to 9 mph becoming calm  after midnight. Winds could gust as high as 18 mph.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 73. Calm wind becoming west northwest around 5 mph in the afternoon.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 53. South southeast wind around 6 mph becoming light and variable  after midnight.

    Low: 53 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Patchy smoke. Mostly sunny, with a high near 70. West wind around 8 mph.
Tonight
A 20 percent chance of showers and thunderstorms before midnight. Patchy smoke. Partly cloudy, with a low around 53. West wind around 6 mph becoming calm in the evening.
Tuesday
A slight chance of showers and thunderstorms between 1pm and 5pm. Patchy smoke. Cloudy, then gradually becoming mostly sunny, with a high near 70. Light west wind becoming west southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 20%.
Tuesday Night
Patchy smoke. Mostly clear, with a low around 53. West southwest wind 5 to 7 mph, with gusts as high as 20 mph.
Wednesday
Patchy smoke before 7am. Sunny, with a high near 72. West southwest wind 6 to 10 mph, with gusts as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 53. West southwest wind 5 to 9 mph becoming calm after midnight. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 73. Calm wind becoming west northwest around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 53. South southeast wind around 6 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 77.
Friday Night
A slight chance of showers after midnight. Mostly cloudy, with a low around 58.
Saturday
A chance of showers. Partly sunny, with a high near 74.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Sunday
A slight chance of showers. Mostly sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 51.
Monday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles WSW St Mary MT
 48.68°N 113.65°W (Elev. 5748 ft)
12:32 pm MDT Aug 17, 2026
4pm MDT Aug 17, 2026-6pm MDT Aug 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

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