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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5 Miles NNW Shoshoni WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Tonight

Heavy Rain Chance for Measurable Precipitation 20%

Heavy
Rain

Low: 66 °F

Tuesday

Heavy Rain Chance for Measurable Precipitation 40%

Heavy
Rain

High: 79 °F

Tuesday
Night

Heavy Rain Chance for Measurable Precipitation 20%

Heavy
Rain

Low: 61 °F

Wednesday

Partly Sunny

Partly
Sunny

High: 82 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 60 °F

Thursday

Mostly Sunny

Mostly
Sunny

High: 83 °F

Thursday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 62 °F

Friday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 82 °F

Friday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 62 °F

Detailed Forecast

  • Tonight Isolated showers and thunderstorms before 10pm, then isolated showers after 5am. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 66. North northeast wind 6 to 11 mph. Chance of precipitation is 20%.
  • Tuesday Isolated showers, then scattered showers and thunderstorms after 9am. Some of the storms could produce heavy rain. Partly sunny, with a high near 79. North wind 7 to 9 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Tuesday Night Isolated showers and thunderstorms before midnight. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 61. East northeast wind 6 to 10 mph. Chance of precipitation is 20%.
  • Wednesday Partly sunny, with a high near 82. East wind around 6 mph becoming calm.
  • Wednesday Night Partly cloudy, with a low around 60. East wind 5 to 8 mph.
  • Thursday Mostly sunny, with a high near 83. South southeast wind around 6 mph becoming light and variable.
  • Thursday Night A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. North wind around 7 mph becoming west northwest after midnight.
  • Friday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
  • Friday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 62.
  • Saturday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
  • Saturday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 62.
  • Sunday Mostly sunny, with a high near 87.
  • Sunday Night Partly cloudy, with a low around 62.
  • Monday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87.