National Weather Service United States Department of Commerce

Significant threat for flash flooding continues across the southwestern U.S.

Heavy precipitation continues to be forecast for much of the Southwest U.S. this week due to the remnants of weakening Tropical Storm Odile. The heavy rainfall will be concentrated across southern Arizona, southern New Mexico and western Texas where 3 to 6 inches could fall through Friday, with some locales receiving up to 9 inches. Flash Flood Watches remain in effect for much of this area.
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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

Late
Afternoon

Scattered Thunderstorms Chance for Measurable Precipitation 30%

Scattered
Thunderstorms

High: 71 °F

Tonight

Isolated Thunderstorms Chance for Measurable Precipitation 20%

Isolated
Thunderstorms

Low: 41 °F

Thursday

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 67 °F

Thursday
Night

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

Low: 39 °F

Friday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 65 °F

Friday
Night

Slight Chance Showers Chance for Measurable Precipitation 20%

Slight Chc
Showers

Low: 36 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 66 °F

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 38 °F

Sunday

Mostly Sunny

Mostly
Sunny

High: 68 °F

Detailed Forecast

  • Late Afternoon Scattered showers and thunderstorms. Partly sunny, with a high near 71. Southwest wind around 8 mph. Chance of precipitation is 30%.
  • Tonight Isolated showers and thunderstorms before midnight. Mostly cloudy, with a low around 41. South southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
  • Thursday Showers and thunderstorms likely, mainly after noon. Mostly cloudy, with a high near 67. South southwest wind 13 to 20 mph, with gusts as high as 26 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 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 39. Southwest wind 9 to 14 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.
  • Friday A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 65. Light and variable wind becoming west southwest 5 to 9 mph in the afternoon.
  • Friday Night A 20 percent chance of showers before midnight. Partly cloudy, with a low around 36.
  • Saturday Mostly sunny, with a high near 66.
  • Saturday Night Mostly clear, with a low around 38.
  • Sunday Mostly sunny, with a high near 68.
  • Sunday Night Partly cloudy, with a low around 38.
  • Monday A slight chance of showers. Mostly sunny, with a high near 64.
  • Monday Night A slight chance of showers. Partly cloudy, with a low around 37.
  • Tuesday Mostly sunny, with a high near 65.
  • Tuesday Night Partly cloudy, with a low around 37.
  • Wednesday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 63.