National Weather Service United States Department of Commerce

Unsettled weather in store for eastern U.S. into weekend

A complex weather system moving across the eastern U.S. will bring a variety of hazardous weather to the region on Friday and into the weekend. Much colder weather is expected by Saturday, along with numerous showers and accumulating snow in the higher elevations of the Appalachians. Rain and snow will move into northern New England on Sunday.
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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

Today

Mostly Sunny

Mostly
Sunny

High: 59 °F

Tonight

Mostly Cloudy

Mostly
Cloudy

Low: 36 °F

Saturday

Showers Chance for Measurable Precipitation 90%

Showers

High: 41 °F

Saturday
Night

Snow Chance for Measurable Precipitation 100%

Snow

Low: 32 °F

Sunday

Snow Chance for Measurable Precipitation 100%

Snow

High: 41 °F

Sunday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 30 °F

Monday

Partly Sunny

Partly
Sunny

High: 42 °F

Monday
Night

Chance Rain/Snow

Chance
Rain/Snow

Low: 35 °F

Tuesday

Chance Showers

Chance
Showers

High: 45 °F

Detailed Forecast

  • Today Mostly sunny, with a high near 59. South southwest wind 6 to 11 mph.
  • Tonight Mostly cloudy, with a low around 36. Southwest wind 6 to 9 mph.
  • Saturday Showers, mainly after noon. High near 41. West southwest wind 5 to 10 mph becoming north northeast in the afternoon. Chance of precipitation is 90%.
  • Saturday Night Snow. Low around 32. North wind around 10 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
  • Sunday Snow, mainly before noon. High near 41. West wind 9 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
  • Sunday Night A 30 percent chance of snow showers. Mostly cloudy, with a low around 30. Little or no snow accumulation expected.
  • Monday Partly sunny, with a high near 42.
  • Monday Night A chance of rain and snow showers. Mostly cloudy, with a low around 35.
  • Tuesday A chance of showers. Mostly cloudy, with a high near 45.
  • Tuesday Night A chance of showers. Mostly cloudy, with a low around 38.
  • Wednesday A chance of showers. Mostly cloudy, with a high near 47.
  • Wednesday Night A chance of showers. Mostly cloudy, with a low around 41.
  • Thursday A chance of showers. Mostly cloudy, with a high near 51.