Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Current conditions at

WEST GLACIER (WGRM8)

Lat: 48.51061°NLon: 113.99677°WElev: 3165.0ft.

NA

54°F

12°C

Humidity 72%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 17 Jun 04:12 AM MDT
Extended Forecast for

16 Miles W St Mary MT

  • Today

    Today: A slight chance of rain between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm.  Increasing clouds, with a high near 69. Calm wind becoming north northwest around 5 mph in the afternoon.  Chance of precipitation is 70%.

    High: 69 °F

    Sunny then
    Showers
    Likely

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 9pm, then rain between 9pm and midnight.  Low around 46. North wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%.

    Low: 46 °F

    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm.  Mostly sunny, with a high near 69. Light and variable wind.

    High: 69 °F

    Sunny then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. Light east northeast wind.

    Low: 46 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 74. Light and variable wind.

    High: 74 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before midnight.  Partly cloudy, with a low around 47.

    Low: 47 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Sunday

    Sunday: A chance of rain after noon.  Mostly sunny, with a high near 66.

    High: 66 °F

    Mostly Sunny
    then Chance
    Rain

Detailed Forecast

Today
A slight chance of rain between 2pm and 3pm, then showers likely and possibly a thunderstorm after 3pm. Increasing clouds, with a high near 69. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 70%.
Tonight
Showers and possibly a thunderstorm before 9pm, then rain between 9pm and midnight. Low around 46. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%.
Thursday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 69. Light and variable wind.
Thursday Night
Partly cloudy, with a low around 46. Light east northeast wind.
Juneteenth
Sunny, with a high near 74. Light and variable wind.
Friday Night
Partly cloudy, with a low around 50.
Saturday
Sunny, with a high near 76.
Saturday Night
A slight chance of rain before midnight. Partly cloudy, with a low around 47.
Sunday
A chance of rain after noon. Mostly sunny, with a high near 66.
Sunday Night
A chance of rain before midnight. Partly cloudy, with a low around 44.
Monday
A slight chance of rain. Mostly sunny, with a high near 71.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles W St Mary MT
 48.75°N 113.79°W (Elev. 3799 ft)
2:00 am MDT Jun 17, 2026
5am MDT Jun 17, 2026-6pm MDT Jun 23, 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