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 NNW Augusta 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: 33 °FRising Temperatures

Sunday

Rain/Snow Likely Chance for Measurable Precipitation 60%

Rain/Snow
Likely

High: 46 °F

Sunday
Night

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

Low: 31 °F

Monday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 36 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 24 °F

Tuesday

Partly Sunny

Partly
Sunny

High: 38 °F

Tuesday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 28 °F

Wednesday

Chance Snow

Chance
Snow

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 38 by 5am. South southwest wind 8 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
  • Sunday Rain likely before 11am, then a chance of rain and snow. Partly sunny, with a high near 46. Windy, with a west wind 22 to 27 mph increasing to 29 to 34 mph in the afternoon. Winds could gust as high as 50 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
  • Sunday Night A slight chance of rain and snow before 11pm, then a slight chance of snow. Mostly cloudy, with a low around 31. Breezy, with a west wind 23 to 28 mph decreasing to 11 to 16 mph after midnight. Chance of precipitation is 20%.
  • Monday A 20 percent chance of snow. Partly sunny, with a high near 36. West wind around 16 mph, with gusts as high as 23 mph.
  • Monday Night Partly cloudy, with a low around 24. West southwest wind around 9 mph.
  • Tuesday Partly sunny, with a high near 38.
  • Tuesday Night A 30 percent chance of snow. Mostly cloudy, with a low around 28. New snow accumulation of less than a half inch possible.
  • Wednesday A chance of snow. Mostly cloudy, with a high near 36.
  • Wednesday Night Snow likely. Cloudy, with a low around 19.
  • Christmas Day Snow likely. Mostly cloudy, with a high near 26.
  • Thursday Night A chance of snow. Mostly cloudy, with a low around 10.
  • Friday A slight chance of snow. Partly sunny, with a high near 22.
  • Friday Night A slight chance of snow. Mostly cloudy, with a low around 13.
  • Saturday A slight chance of snow. Mostly cloudy, with a high near 26.