Dangerous Heat in the Southwest; Severe Thunderstorms from the Central Plains into the Ohio Valley

Dangerous heat will build across the Southwest U.S. through the end of the week with daytime highs of 110-115°F. Isolated to widely scattered severe storms are expected across parts of the central and southern High Plains, Great Lakes into the Ohio Valley, and parts of the Ozarks to Lower Mississippi Valley today. Read More >

Current conditions at

Logan Pass Visitors Center (LGPVC)

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

NA

64°F

18°C

Humidity 30%
Wind Speed WNW 4 MPH
Barometer 30.24 in (1024.04 mb)
Dewpoint 32°F (0°C)
Visibility NA
Last update 26 Aug 07:00 AM MDT
Extended Forecast for

14 Miles WSW St Mary MT

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly after 5pm.  Patchy smoke before 3pm. Increasing clouds, with a high near 77. Light west southwest wind becoming southwest 5 to 9 mph in the morning.

    High: 77 °F

    Patchy Smoke
    then Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 1am.  Patchy smoke after midnight. Mostly cloudy, with a low around 56. West southwest wind 5 to 7 mph becoming east in the evening.

    Low: 56 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: Patchy smoke before noon. Partly sunny, with a high near 73. South southwest wind 6 to 14 mph, with gusts as high as 26 mph.

    High: 73 °F

    Patchy Smoke
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Patchy smoke before 7pm. Mostly clear, with a low around 51. Breezy, with a southwest wind 14 to 24 mph, with gusts as high as 39 mph.

    Low: 51 °F

    Patchy Smoke
    then Mostly
    Clear and
    Breezy

  • Friday

    Friday: Sunny, with a high near 63. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 36 mph.

    High: 63 °F

    Sunny and
    Breezy then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 46. Southwest wind 10 to 17 mph, with gusts as high as 31 mph.

    Low: 46 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 57. Southwest wind 10 to 16 mph, with gusts as high as 29 mph.

    High: 57 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers, mainly after midnight.  Partly cloudy, with a low around 40. West southwest wind 9 to 15 mph, with gusts as high as 26 mph.

    Low: 40 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, mainly before noon.  Partly sunny, with a high near 55.

    High: 55 °F

    Chance
    Showers

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Patchy smoke before 3pm. Increasing clouds, with a high near 77. Light west southwest wind becoming southwest 5 to 9 mph in the morning.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 1am. Patchy smoke after midnight. Mostly cloudy, with a low around 56. West southwest wind 5 to 7 mph becoming east in the evening.
Thursday
Patchy smoke before noon. Partly sunny, with a high near 73. South southwest wind 6 to 14 mph, with gusts as high as 26 mph.
Thursday Night
Patchy smoke before 7pm. Mostly clear, with a low around 51. Breezy, with a southwest wind 14 to 24 mph, with gusts as high as 39 mph.
Friday
Sunny, with a high near 63. Breezy, with a southwest wind 16 to 22 mph, with gusts as high as 36 mph.
Friday Night
Mostly clear, with a low around 46. Southwest wind 10 to 17 mph, with gusts as high as 31 mph.
Saturday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 57. Southwest wind 10 to 16 mph, with gusts as high as 29 mph.
Saturday Night
A chance of showers, mainly after midnight. Partly cloudy, with a low around 40. West southwest wind 9 to 15 mph, with gusts as high as 26 mph.
Sunday
A chance of showers, mainly before noon. Partly sunny, with a high near 55.
Sunday Night
Partly cloudy, with a low around 42.
Monday
Sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
14 Miles WSW St Mary MT
 48.69°N 113.71°W (Elev. 6470 ft)
4:32 am MDT Aug 26, 2026
8am MDT Aug 26, 2026-6pm MDT Sep 1, 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