National Weather Service United States Department of Commerce

A stalled frontal boundary and ample monsoonal moisture will lead to flash flood potential from the Great Basin to the Great Plains tonight and Tuesday

A stalled frontal boundary will set up along the southern and central Rockies for the next couple of days providing focus for showers and thunderstorms. In addition, ample monsoonal moisture will stream in across the southwest bringing enough moisture to introduce a flash flood threat from the Great Basin and Southwest eastward across the central and southern Rockies into the adjacent Plains.
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Current Conditions

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17 Miles ENE Cooke City MT

7 Day Forecast

For More Weather Information:

Billings, MT Local Forecast Office

Overnight

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 42 °F

Tuesday

Chance Thunderstorms Chance for Measurable Precipitation 40%

Chance
Thunderstorms

High: 62 °F

Tuesday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 38 °F

Wednesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 62 °F

Wednesday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 42 °F

Thursday

Scattered Thunderstorms Chance for Measurable Precipitation 40%

Scattered
Thunderstorms

High: 59 °F

Thursday
Night

Scattered Thunderstorms Chance for Measurable Precipitation 40%

Scattered
Thunderstorms

Low: 42 °F

Friday

Scattered Thunderstorms Chance for Measurable Precipitation 40%

Scattered
Thunderstorms

High: 60 °F

Friday
Night

Scattered Thunderstorms Chance for Measurable Precipitation 40%

Scattered
Thunderstorms

Low: 40 °F

Detailed Forecast

  • Overnight A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 42. Calm wind becoming southwest around 6 mph.
  • Tuesday A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 62. Light and variable wind becoming east 5 to 8 mph in the afternoon.
  • Tuesday Night A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 38. East northeast wind around 8 mph becoming south southwest after midnight. Chance of precipitation is 30%.
  • Wednesday A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 62. South southwest wind 5 to 9 mph becoming east in the afternoon. Chance of precipitation is 20%.
  • Wednesday Night A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42. East southeast wind 6 to 8 mph becoming south southwest after midnight.
  • Thursday Scattered showers and thunderstorms. Partly sunny, with a high near 59. Chance of precipitation is 40%.
  • Thursday Night Scattered showers and thunderstorms. Mostly cloudy, with a low around 42. Chance of precipitation is 40%.
  • Friday Scattered showers and thunderstorms. Partly sunny, with a high near 60. Chance of precipitation is 40%.
  • Friday Night Scattered showers and thunderstorms. Partly cloudy, with a low around 40. Chance of precipitation is 40%.
  • Saturday Scattered showers and thunderstorms. Mostly sunny, with a high near 59. Chance of precipitation is 40%.
  • Saturday Night Scattered showers and thunderstorms. Partly cloudy, with a low around 41. Chance of precipitation is 40%.
  • Sunday Scattered showers and thunderstorms. Mostly sunny, with a high near 60. Chance of precipitation is 30%.
  • Sunday Night Scattered showers and thunderstorms. Partly cloudy, with a low around 42. Chance of precipitation is 30%.
  • Monday Scattered showers and thunderstorms. Mostly sunny, with a high near 61. Chance of precipitation is 40%.