National Weather Service United States Department of Commerce

Significant threat for flash floods in the Southwest U.S. this week

Heavy precipitation is expected over portions 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 by Thursday, with some locales receiving up to 9 inches. Flash Flood Watches are in effect for much of this area.
Read More...

Current Conditions

En Español

Share |

22 Miles NW West Yellowstone MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Today

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 66 °F

Tonight

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 42 °F

Wednesday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 66 °F

Wednesday
Night

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

Low: 42 °F

Thursday

Showers Likely Chance for Measurable Precipitation 70%

Showers
Likely

High: 62 °F

Thursday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 39 °F

Friday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 56 °F

Friday
Night

Chance Thunderstorms

Chance
Thunderstorms

Low: 37 °F

Saturday

Sunny

Sunny

High: 59 °F

Detailed Forecast

  • Today A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 66. Light southwest wind becoming west southwest 5 to 9 mph in the afternoon.
  • Tonight A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42. Light and variable wind.
  • Wednesday A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66. Light south wind becoming southwest 6 to 11 mph in the afternoon.
  • Wednesday Night A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 42. South wind around 6 mph.
  • Thursday A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 62. South wind around 7 mph. Chance of precipitation is 70%.
  • Thursday Night A chance of showers and thunderstorms. Mostly cloudy, with a low around 39. Chance of precipitation is 30%.
  • Friday A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 56. Chance of precipitation is 30%.
  • Friday Night A chance of showers and thunderstorms. Partly cloudy, with a low around 37.
  • Saturday Sunny, with a high near 59.
  • Saturday Night Mostly clear, with a low around 39.
  • Sunday Sunny, with a high near 62.
  • Sunday Night Mostly clear, with a low around 39.
  • Monday Sunny, with a high near 60.