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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5 Miles S West Yellowstone MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Tonight

Chance Thunderstorms Chance for Measurable Precipitation 50%

Chance
Thunderstorms

Low: 42 °F

Thursday

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

High: 61 °F

Thursday
Night

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

Low: 40 °F

Friday

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

High: 61 °F

Friday
Night

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

Low: 36 °F

Saturday

Showers Likely Chance for Measurable Precipitation 60%

Showers
Likely

High: 55 °F

Saturday
Night

Chance Showers Chance for Measurable Precipitation 50%

Chance
Showers

Low: 33 °F

Sunday

Chance Showers

Chance
Showers

High: 58 °F

Sunday
Night

Chance Showers

Chance
Showers

Low: 35 °F

Detailed Forecast

  • Tonight A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 42. South wind 7 to 10 mph.
  • Thursday A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 61. South wind 5 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Thursday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 40. Southwest wind 5 to 10 mph becoming light and variable. Chance of precipitation is 50%.
  • Friday A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 61. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 50%.
  • Friday Night A chance of showers before midnight, then a chance of rain after midnight. Mostly cloudy, with a low around 36. South southeast wind 3 to 8 mph. Chance of precipitation is 40%.
  • Saturday A chance of rain before noon, then showers likely after noon. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
  • Saturday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 33. Chance of precipitation is 50%.
  • Sunday A chance of showers and thunderstorms. Partly sunny, with a high near 58.
  • Sunday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 35.
  • Monday A chance of showers and thunderstorms. Partly sunny, with a high near 61.
  • Monday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 37.
  • Tuesday A chance of showers and thunderstorms. Partly sunny, with a high near 61.
  • Tuesday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 38.
  • Wednesday Partly sunny, with a high near 66.