National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Current Conditions

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5 Miles NNE Winston MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Today

Rain Chance for Measurable Precipitation 80%

Rain

High: 43 °F

Tonight

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 28 °F

Monday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 36 °FFalling Temperatures

Monday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 18 °F

Tuesday

Partly Sunny

Partly
Sunny

High: 31 °F

Tuesday
Night

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 19 °F

Wednesday

Rain/Snow Likely Chance for Measurable Precipitation 70%

Rain/Snow
Likely

High: 36 °F

Wednesday
Night

Rain/Snow

Rain/Snow

Low: 23 °F

Christmas
Day

Snow

Snow

High: 25 °F

Detailed Forecast

  • Today Rain. High near 43. South wind 7 to 16 mph becoming west in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 80%.
  • Tonight A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 28. West northwest wind 13 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
  • Monday A chance of snow before 11am, then a chance of rain and snow. Partly sunny, with a temperature falling to around 25 by 5pm. West northwest wind 9 to 13 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
  • Monday Night A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 18. West wind around 7 mph.
  • Tuesday Partly sunny, with a high near 31. South southwest wind 6 to 8 mph.
  • Tuesday Night A chance of snow before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 19. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
  • Wednesday Snow likely before 11am, then rain and snow likely. Cloudy, with a high near 36. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
  • Wednesday Night Rain and snow. Cloudy, with a low around 23.
  • Christmas Day Snow. Cloudy, with a high near 25.
  • Thursday Night A slight chance of snow. Mostly cloudy, with a low around 11.
  • Friday Partly sunny, with a high near 22.
  • Friday Night Mostly cloudy, with a low around 10.
  • Saturday A slight chance of snow. Mostly cloudy, with a high near 23.