National Weather Service United States Department of Commerce

The flash flooding threat shifts slightly east on Friday while both coasts and Hawaii continue high surf issues due to tropical systems

The potential for heavy rainfall and flash flooding will shift east on Friday across parts of the Upper Midwest into the eastern Great Lakes. Meanwhile, portions of both the East and West Coasts, as well as Hawaii, will continue to have high surf and rip current potential due to Hurricane Cristobal and Tropical Storm Marie respectively. Caution should be used on area beaches.
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Current Conditions

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12 Miles E Big Sky MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Today

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 62 °F

Tonight

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 42 °F

Saturday

Showers Likely Chance for Measurable Precipitation 70%

Showers
Likely

High: 52 °F

Saturday
Night

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

Low: 32 °F

Sunday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 49 °F

Sunday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 34 °F

Labor
Day

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 49 °F

Monday
Night

Chance Showers

Chance
Showers

Low: 34 °F

Tuesday

Sunny

Sunny

High: 55 °F

Detailed Forecast

  • Today A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 62. Light west wind becoming west southwest 5 to 9 mph in the morning.
  • Tonight A chance of showers and thunderstorms. Partly cloudy, with a low around 42. Breezy, with a south southwest wind 8 to 13 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 30%.
  • Saturday Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 52. Southwest wind 11 to 15 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
  • Saturday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 32. West wind 7 to 9 mph. Chance of precipitation is 50%.
  • Sunday A chance of rain and snow showers. Partly sunny, with a high near 49. West wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
  • Sunday Night A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 40%.
  • Labor Day A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 49. Chance of precipitation is 30%.
  • Monday Night A chance of showers and thunderstorms. Partly cloudy, with a low around 34.
  • Tuesday Sunny, with a high near 55.
  • Tuesday Night Mostly clear, with a low around 37.
  • Wednesday A slight chance of showers and thunderstorms. Sunny, with a high near 55.
  • Wednesday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 38.
  • Thursday A chance of showers. Mostly sunny, with a high near 52.