Severe Thunderstorms and Heavy Rainfall Across the Central Plains and Central Appalachians

Severe thunderstorms producing damaging winds, heavy rainfall, hail and possibly a few tornadoes will continue through tonight across portions of Kansas and Oklahoma. Heavy rainfall will persist across the Central Appalachians through tonight, potentially leading to areas of flooding. The severe weather and heavy rainfall threat will shift into the lower Great Lakes on Wednesday. Read More >

Current conditions at

USCRN SITE NEAR ST. MARY 1SSW (MRYM8)

Lat: 48.74111°NLon: 113.43306°WElev: 4550.0ft.

NA

53°F

12°C

Humidity 32%
Wind Speed NA NA MPH
Barometer NA
Dewpoint 24°F (-4°C)
Visibility NA
Last update 18 Jun 02:10 AM MDT
Extended Forecast for

St Mary MT

  • Overnight

    Overnight: Mostly clear, with a low around 46. Southwest wind around 7 mph.

    Low: 46 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 74. Southwest wind 8 to 15 mph, with gusts as high as 29 mph.

    High: 74 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48. Southwest wind 11 to 14 mph, with gusts as high as 29 mph.

    Low: 48 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 73. West southwest wind 8 to 10 mph, with gusts as high as 21 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44. West southwest wind 3 to 7 mph.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Showers likely, mainly after noon.  Mostly cloudy, with a high near 61. Light and variable wind becoming northeast 5 to 8 mph in the morning.  Chance of precipitation is 70%.

    High: 61 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 41. East northeast wind around 7 mph becoming west southwest after midnight.  Chance of precipitation is 90%.

    Low: 41 °F

    Showers

  • Saturday

    Saturday: Showers.  Cloudy, with a high near 53. West southwest wind 8 to 13 mph, with gusts as high as 25 mph.

    High: 53 °F

    Showers

  • Saturday Night

    Saturday Night: Showers.  Cloudy, with a low around 34.

    Low: 34 °F

    Showers

Detailed Forecast

Overnight
Mostly clear, with a low around 46. Southwest wind around 7 mph.
Wednesday
Sunny, with a high near 74. Southwest wind 8 to 15 mph, with gusts as high as 29 mph.
Wednesday Night
Mostly clear, with a low around 48. Southwest wind 11 to 14 mph, with gusts as high as 29 mph.
Juneteenth
Mostly sunny, with a high near 73. West southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Thursday Night
Mostly cloudy, with a low around 44. West southwest wind 3 to 7 mph.
Friday
Showers likely, mainly after noon. Mostly cloudy, with a high near 61. Light and variable wind becoming northeast 5 to 8 mph in the morning. Chance of precipitation is 70%.
Friday Night
Showers and possibly a thunderstorm. Low around 41. East northeast wind around 7 mph becoming west southwest after midnight. Chance of precipitation is 90%.
Saturday
Showers. Cloudy, with a high near 53. West southwest wind 8 to 13 mph, with gusts as high as 25 mph.
Saturday Night
Showers. Cloudy, with a low around 34.
Sunday
Showers. Cloudy, with a high near 49.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 33.
Monday
A chance of showers. Partly sunny, with a high near 59.
Monday Night
A slight chance of showers. Partly cloudy, with a low around 38.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
St Mary MT
 48.74°N 113.44°W (Elev. 4554 ft)
11:10 pm MDT Jun 17, 2025
2am MDT Jun 18, 2025-6pm MDT Jun 24, 2025
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database