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

MANY GLACIER (MANM8)

Lat: 48.79698°NLon: 113.6705°WElev: 4900.0ft.

NA

52°F

11°C

Humidity 84%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 18 Aug 01:00 AM MDT
Extended Forecast for

10 Miles W St Mary MT

  • Overnight

    Overnight: Patchy smoke. Mostly cloudy, with a low around 50. West southwest wind around 8 mph.

    Low: 50 °F

    Patchy Smoke

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly between 2pm and 5pm.  Patchy smoke between 4pm and 5pm. Partly sunny, with a high near 59. West southwest wind 7 to 13 mph, with gusts as high as 23 mph.

    High: 59 °F

    Patchy Smoke
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Patchy smoke after 4am. Mostly clear, with a low around 50. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.

    Low: 50 °F

    Partly Cloudy
    then Patchy
    Smoke

  • Wednesday

    Wednesday: Patchy smoke before 10am, then patchy smoke after 4pm. Mostly sunny, with a high near 61. West southwest wind 9 to 15 mph, with gusts as high as 23 mph.

    High: 61 °F

    Patchy Smoke

  • Wednesday Night

    Wednesday Night: Patchy smoke before 7pm. Mostly clear, with a low around 50. West southwest wind 8 to 13 mph, with gusts as high as 22 mph.

    Low: 50 °F

    Patchy Smoke
    then Partly
    Cloudy

  • Thursday

    Thursday: Sunny, with a high near 61. West southwest wind 6 to 8 mph.

    High: 61 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 49. South wind 6 to 8 mph.

    Low: 49 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 65. South wind around 7 mph.

    High: 65 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after midnight.  Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Patchy smoke. Mostly cloudy, with a low around 50. West southwest wind around 8 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly between 2pm and 5pm. Patchy smoke between 4pm and 5pm. Partly sunny, with a high near 59. West southwest wind 7 to 13 mph, with gusts as high as 23 mph.
Tuesday Night
Patchy smoke after 4am. Mostly clear, with a low around 50. Southwest wind 8 to 11 mph, with gusts as high as 23 mph.
Wednesday
Patchy smoke before 10am, then patchy smoke after 4pm. Mostly sunny, with a high near 61. West southwest wind 9 to 15 mph, with gusts as high as 23 mph.
Wednesday Night
Patchy smoke before 7pm. Mostly clear, with a low around 50. West southwest wind 8 to 13 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 61. West southwest wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 49. South wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 65. South wind around 7 mph.
Friday Night
A chance of showers after midnight. Mostly cloudy, with a low around 55.
Saturday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 61.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 48. Breezy.
Sunday
A slight chance of showers. Sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles W St Mary MT
 48.76°N 113.67°W (Elev. 7244 ft)
12:31 am MDT Aug 18, 2026
2am MDT Aug 18, 2026-6pm MDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database