National Weather Service United States Department of Commerce

Oppressive heat and humidity building into the central and southeast U.S.

A heat wave is building into parts of the central and southeast U.S. this week. The combination of heat and humidity will lead to dangerous heat indices, especially in parts of the central Mississippi River Valley where an Excessive Heat Warning is in effect. Heat Advisories are in effect elsewhere across the region. Relief is not expected for several days.
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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

Today

Showers Likely Chance for Measurable Precipitation 70%

Showers
Likely

High: 64 °F

Tonight

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

Low: 52 °F

Friday

Showers Chance for Measurable Precipitation 90%

Showers

High: 64 °F

Friday
Night

Rain Chance for Measurable Precipitation 100%

Rain

Low: 52 °F

Saturday

Rain Chance for Measurable Precipitation 90%

Rain

High: 56 °F

Saturday
Night

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

Low: 44 °F

Sunday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 63 °F

Sunday
Night

Slight Chance Showers

Slight Chc
Showers

Low: 44 °F

Monday

Chance Showers

Chance
Showers

High: 66 °F

Detailed Forecast

  • Today Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 64. North wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
  • Tonight Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 52. Northeast wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Friday Showers and possibly a thunderstorm. High near 64. Northeast wind 11 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
  • Friday Night Rain and possibly a thunderstorm. Low around 52. Northeast wind around 17 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
  • Saturday Rain, mainly before noon. High near 56. North northeast wind 13 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
  • Saturday Night Showers likely, mainly before midnight. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
  • Sunday A 30 percent chance of showers, mainly before noon. Mostly cloudy, with a high near 63.
  • Sunday Night A slight chance of showers. Mostly cloudy, with a low around 44.
  • Monday A chance of showers. Mostly sunny, with a high near 66.
  • Monday Night A chance of showers. Mostly cloudy, with a low around 48.
  • Tuesday Mostly sunny, with a high near 73.
  • Tuesday Night Partly cloudy, with a low around 49.
  • Wednesday Mostly sunny, with a high near 80.