National Weather Service United States Department of Commerce

Strong storm system to bring unsettled weather from Gulf Coast to Great Lakes through Wednesday

A strong storm system will bring potential for severe weather, heavy rainfall and flooding, and heavy snow from the Gulf Coast to the Great Lakes through Wednesday. Severe storms are possible Tuesday across the Gulf Coast states with damaging winds as the primary threat, however a tornadoes cannot be ruled out. Flash flooding is also possible across parts of the Southeast through Wednesday.
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Current Conditions

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Helena MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Tonight

Partly Cloudy

Partly
Cloudy

Low: 20 °F

Tuesday

Partly Sunny

Partly
Sunny

High: 32 °F

Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 26 °F

Wednesday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 38 °F

Wednesday
Night

Snow Chance for Measurable Precipitation 90%

Snow

Low: 24 °F

Christmas
Day

Snow Chance for Measurable Precipitation 90%

Snow

High: 28 °F

Thursday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 11 °F

Friday

Slight Chance Snow

Slight Chc
Snow

High: 22 °F

Friday
Night

Slight Chance Snow

Slight Chc
Snow

Low: 10 °F

Detailed Forecast

  • Tonight Partly cloudy, with a low around 20. West wind around 6 mph.
  • Tuesday Partly sunny, with a high near 32. South wind 3 to 5 mph.
  • Tuesday Night A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26. Light south southwest wind.
  • Wednesday A 50 percent chance of snow. Mostly cloudy, with a high near 38. South southwest wind 5 to 7 mph. New snow accumulation of less than a half inch possible.
  • Wednesday Night Snow. Low around 24. Southwest wind 6 to 9 mph becoming northwest after midnight. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
  • Christmas Day Snow. High near 28. Chance of precipitation is 90%. New snow accumulation of around an inch possible.
  • Thursday Night A 30 percent chance of snow. Mostly cloudy, with a low around 11. New snow accumulation of less than a half inch possible.
  • Friday A slight chance of snow showers. Partly sunny, with a high near 22.
  • Friday Night A slight chance of snow. Mostly cloudy, with a low around 10.
  • Saturday A chance of snow. Mostly cloudy, with a high near 24.
  • Saturday Night A chance of snow. Mostly cloudy, with a low around 14.
  • Sunday A chance of snow. Cloudy, with a high near 23.
  • Sunday Night A slight chance of snow. Mostly cloudy, with a low around 6.
  • Monday A slight chance of snow. Partly sunny, with a high near 16.