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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St Mary MT

7 Day Forecast

For More Weather Information:

Great Falls, MT Local Forecast Office

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: 45 °F

Wednesday

Partly Sunny

Partly
Sunny

High: 73 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 50 °F

Thursday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 69 °F

Thursday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 49 °F

Friday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 62 °F

Friday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 42 °F

Saturday

Sunny

Sunny

High: 66 °F

Saturday
Night

Mostly Clear

Mostly
Clear

Low: 43 °F

Detailed Forecast

  • Overnight Mostly cloudy, with a low around 45. West southwest wind around 5 mph.
  • Wednesday Partly sunny, with a high near 73. Southwest wind 6 to 9 mph.
  • Wednesday Night Mostly cloudy, with a low around 50. Southwest wind 3 to 8 mph.
  • Thursday A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 69. West southwest wind 6 to 10 mph. Chance of precipitation is 30%.
  • Thursday Night A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 49. West southwest wind 18 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
  • Friday A slight chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 62. Chance of precipitation is 20%.
  • Friday Night A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.
  • Saturday Sunny, with a high near 66.
  • Saturday Night Mostly clear, with a low around 43.
  • Sunday Sunny, with a high near 68.
  • Sunday Night Mostly clear, with a low around 44.
  • Monday Sunny, with a high near 67.
  • Monday Night Mostly clear, with a low around 44.
  • Tuesday Sunny, with a high near 65.