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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10 Miles N Winston MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Tonight

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 28 °FRising Temperatures

Sunday

Rain/Snow Chance for Measurable Precipitation 80%

Rain/Snow

High: 44 °F

Sunday
Night

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

Low: 28 °F

Monday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 35 °F

Monday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 18 °F

Tuesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 32 °F

Tuesday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 24 °F

Wednesday

Snow Likely

Snow
Likely

High: 36 °F

Wednesday
Night

Snow Likely

Snow
Likely

Low: 19 °F

Detailed Forecast

  • Tonight A chance of snow, mainly after 11pm. Mostly cloudy, with a temperature rising to around 31 by 5am. South wind around 7 mph. Chance of precipitation is 50%. Total nighttime snow accumulation of less than a half inch possible.
  • Sunday Rain, possibly mixed with snow, mainly before 11am. High near 44. South wind 5 to 10 mph becoming west 11 to 16 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
  • Sunday Night A chance of rain before 11pm, then a chance of rain and snow. Mostly cloudy, with a low around 28. West wind 11 to 16 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
  • Monday A 30 percent chance of snow. Mostly cloudy, with a high near 35. West wind around 14 mph, with gusts as high as 18 mph. New snow accumulation of less than a half inch possible.
  • Monday Night Mostly cloudy, with a low around 18. West wind around 8 mph.
  • Tuesday A 20 percent chance of snow showers after 11am. Partly sunny, with a high near 32.
  • Tuesday Night A 30 percent chance of snow. Mostly cloudy, with a low around 24. New snow accumulation of less than a half inch possible.
  • Wednesday Snow likely. Cloudy, with a high near 36.
  • Wednesday Night Snow likely. Cloudy, with a low around 19.
  • Christmas Day Snow likely. Cloudy, with a high near 25.
  • Thursday Night A slight chance of snow. Mostly cloudy, with a low around 9.
  • Friday Partly sunny, with a high near 21.
  • Friday Night Mostly cloudy, with a low around 10.
  • Saturday A slight chance of snow. Mostly cloudy, with a high near 24.