National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Thunderstorms and Heavy Rainfall in the Southeast, Montana, and Iowa; Lowell Begins to Impact Hawaii

Strong thunderstorms with damaging winds and heavy rain are expected across portions of the Southeast. Thunderstorms may produce large hail across portions of Montana. Heavy rainfall could produce flash flooding across Iowa and vulnerable areas in Utah. Lowell will bring heavy rain, dangerous swells and rip currents to portions of Hawaii. Sweltering heat persists across the South-Central US. Read More >

Hazardous Weather Conditions

Current conditions at

Logan Pass Visitors Center (LGPVC)

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

NA

43°F

6°C

Humidity 86%
Wind Speed WNW 6 MPH
Barometer 29.88 in (1011.85 mb)
Dewpoint 39°F (4°C)
Visibility NA
Wind Chill39°F (4°C)
Last update 04 Sep 12:00 AM MDT
Extended Forecast for

13 Miles W St Mary MT

  • Today

    Today: A chance of showers before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before 3pm. Otherwise, mostly cloudy, with a high near 49. Southeast wind around 7 mph. Chance of precipitation is 70%.

    High: 49 °F

    Showers
    Likely and
    Patchy Fog

  • Tonight

    Tonight: Showers and thunderstorms before 5am, then showers likely. Patchy fog between 1am and 5am. Low around 39. East wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Showers and
    Patchy Fog
    then Showers
    Likely and
    Patchy Fog

  • Labor Day

    Labor Day: Showers, with thunderstorms also possible after noon. High near 40. East southeast wind 6 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 40 °F

    Showers

  • Monday Night

    Monday Night: Rain, possibly mixed with snow showers, becoming all rain after 9pm. Low around 37. West southwest wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow
    then Showers

  • Tuesday

    Tuesday: Showers. High near 41. West southwest wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.

    High: 41 °F

    Showers

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37. West southwest wind 11 to 14 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 48. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 34 mph.

    High: 48 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. Breezy, with a west southwest wind 22 to 26 mph, with gusts as high as 41 mph.

    Low: 42 °F

    Mostly Clear
    and Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 49. Breezy.

    High: 49 °F

    Mostly Sunny
    and Breezy

Detailed Forecast

Today
A chance of showers before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before 3pm. Otherwise, mostly cloudy, with a high near 49. Southeast wind around 7 mph. Chance of precipitation is 70%.
Tonight
Showers and thunderstorms before 5am, then showers likely. Patchy fog between 1am and 5am. Low around 39. East wind 5 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Labor Day
Showers, with thunderstorms also possible after noon. High near 40. East southeast wind 6 to 15 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Rain, possibly mixed with snow showers, becoming all rain after 9pm. Low around 37. West southwest wind 16 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday
Showers. High near 41. West southwest wind 10 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 90%.
Tuesday Night
Mostly cloudy, with a low around 37. West southwest wind 11 to 14 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 48. Breezy, with a west southwest wind 15 to 22 mph, with gusts as high as 34 mph.
Wednesday Night
Mostly clear, with a low around 42. Breezy, with a west southwest wind 22 to 26 mph, with gusts as high as 41 mph.
Thursday
Mostly sunny, with a high near 49. Breezy.
Thursday Night
A chance of showers, mainly after midnight. Mostly cloudy, with a low around 36.
Friday
Rain and snow showers likely. Some thunder is also possible. Mostly cloudy, with a high near 40.
Friday Night
Rain and snow showers likely. Mostly cloudy, with a low around 32.
Saturday
A chance of rain and snow showers. Partly sunny, with a high near 37.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles W St Mary MT
 48.72°N 113.69°W (Elev. 7539 ft)
Last Update:
10:51 am MDT Sep 6, 2026
Forecast Valid:
11am MDT Sep 6, 2026-6pm MDT Sep 12, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation