National Weather Service United States Department of Commerce

Cold Front Crossing the Central U.S.

A cold front over the Northern Rockies will move eastward to the Upper Mississippi Valley/Central Plains by Monday. Rain will develop along the boundary over the Upper Midwest and move into the Upper Great Lakes by Monday. Some of the thunderstorms could become severe in portions of Texas through Monday.
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Current Conditions

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St Mary MT

7 Day Forecast

Great Falls, MT

NWS Weather Forecast Office

Tonight

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 35 °F

Sunday

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

High: 47 °F

Sunday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 30 °F

Monday

Partly Sunny

Partly
Sunny

High: 57 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 38 °F

Tuesday

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

High: 56 °F

Tuesday
Night

Rain/Snow Chance for Measurable Precipitation 90%

Rain/Snow

Low: 37 °F

Wednesday

Rain/Snow

Rain/Snow

High: 37 °F

Wednesday
Night

Chance Snow

Chance
Snow

Low: 30 °F

Detailed Forecast

  • Tonight A slight chance of rain showers before midnight, then a chance of rain and snow showers. Mostly cloudy, with a low around 35. Windy, with a southwest wind 17 to 22 mph increasing to 27 to 32 mph after midnight. Winds could gust as high as 49 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
  • Sunday A slight chance of snow showers before noon, then a slight chance of rain showers. Mostly sunny, with a high near 47. Windy, with a west southwest wind 21 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 20%.
  • Sunday Night Mostly cloudy, with a low around 30. West southwest wind 8 to 15 mph, with gusts as high as 22 mph.
  • Monday Partly sunny, with a high near 57. South wind around 7 mph.
  • Monday Night Mostly cloudy, with a low around 38. South southeast wind around 8 mph.
  • Tuesday A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 56. Chance of precipitation is 50%.
  • Tuesday Night Rain showers before midnight, then snow showers. Low around 37. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
  • Wednesday Rain and snow showers. Cloudy, with a high near 37.
  • Wednesday Night A chance of snow showers. Cloudy, with a low around 30.
  • Thursday A chance of rain and snow showers. Mostly cloudy, with a high near 42.
  • Thursday Night A slight chance of rain and snow showers. Mostly cloudy, with a low around 28.
  • Friday A slight chance of rain and snow showers. Partly sunny, with a high near 47.
  • Friday Night A chance of rain and snow showers. Mostly cloudy, with a low around 33.
  • Saturday A chance of rain and snow showers. Mostly cloudy, with a high near 43.

 

Additional Forecasts and Information

Zone Area Forecast for Northern Rocky Mountain Front, MT