National Weather Service United States Department of Commerce

A Moderate Risk of Severe Thunderstorms is Forecast This Evening and Tonight

Damaging winds and large hail are likely from North Dakota into western and northern Minnesota this evening into tonight. Some wind gusts could be particularly damaging. Storms are also possible over the Texas panhandle and the Carolinas.
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Current Conditions

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St Mary MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Overnight

Partly Cloudy

Partly
Cloudy

Low: 47 °F

Tuesday

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

High: 72 °F

Tuesday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 50 °F

Wednesday

Thunderstorms Likely Chance for Measurable Precipitation 70%

Thunderstorms
Likely

High: 79 °F

Wednesday
Night

Thunderstorms Likely Chance for Measurable Precipitation 70%

Thunderstorms
Likely

Low: 48 °F

Thursday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 57 °F

Thursday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 45 °F

Friday

Sunny

Sunny

High: 65 °F

Friday
Night

Mostly Clear

Mostly
Clear

Low: 46 °F

Detailed Forecast

  • Overnight Partly cloudy, with a low around 47. Light southwest wind.
  • Tuesday A 50 percent chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 72. South southeast wind 5 to 10 mph.
  • Tuesday Night A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50. South southwest wind 7 to 10 mph.
  • Wednesday Showers and thunderstorms likely, mainly after noon. Partly sunny, with a high near 79. South southeast wind 5 to 8 mph. Chance of precipitation is 70%.
  • Wednesday Night Showers and thunderstorms likely, mainly before midnight. Mostly cloudy, with a low around 48. South southwest wind 11 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
  • Thursday A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 57. Windy.
  • Thursday Night A 20 percent chance of showers before midnight. Partly cloudy, with a low around 45. Windy.
  • Friday Sunny, with a high near 65.
  • Friday Night Mostly clear, with a low around 46.
  • Saturday Sunny, with a high near 71.
  • Saturday Night Clear, with a low around 47.
  • Sunday Sunny, with a high near 77.
  • Sunday Night Mostly clear, with a low around 48.
  • Monday Sunny, with a high near 80.