National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Current Conditions

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Great Falls MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Overnight

Partly Cloudy

Partly
Cloudy

Low: 2 °C

Sunday

Mostly Sunny

Mostly
Sunny

High: 4 °C

Sunday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: -3 °C

Monday

Mostly Sunny

Mostly
Sunny

High: 4 °C

Monday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: -2 °C

Tuesday

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

High: 4 °C

Tuesday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: -1 °C

Wednesday

Chance Snow

Chance
Snow

High: 4 °C

Wednesday
Night

Chance Snow

Chance
Snow

Low: -10 °C

Detailed Forecast

  • Overnight Partly cloudy, with a steady temperature around -17. West wind 24 to 26 km/h, with gusts as high as 35 km/h.
  • Sunday Mostly sunny, with a high near 4. West wind 23 to 32 km/h, with gusts as high as 45 km/h.
  • Sunday Night A 20 percent chance of snow showers. Mostly cloudy, with a low around -3. West southwest wind 24 to 29 km/h decreasing to 18 to 23 km/h after midnight. Winds could gust as high as 40 km/h.
  • Monday Mostly sunny, with a high near 4. West wind 18 to 24 km/h, with gusts as high as 34 km/h.
  • Monday Night A 30 percent chance of snow showers. Mostly cloudy, with a low around -2. Southwest wind 23 to 27 km/h, with gusts as high as 39 km/h. New snow accumulation of less than a half centimeter possible.
  • Tuesday A chance of snow before noon, then a chance of rain. Mostly cloudy, with a high near 4. Chance of precipitation is 50%. New snow accumulation of less than a half centimeter possible.
  • Tuesday Night Snow likely. Mostly cloudy, with a low around -1. Chance of precipitation is 60%. New snow accumulation of 1 to 3 centimeters possible.
  • Wednesday A chance of snow. Mostly cloudy, with a high near 4.
  • Wednesday Night A chance of snow. Mostly cloudy, with a low around -10.
  • Thanksgiving Day A slight chance of snow. Partly sunny, with a high near -4.
  • Thursday Night Mostly cloudy, with a low around -13.
  • Friday A slight chance of snow. Mostly sunny, with a high near -7.
  • Friday Night A slight chance of snow. Partly cloudy, with a low around -12.
  • Saturday A slight chance of snow. Mostly sunny, with a high near -1.