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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4 Miles N Hamilton Dome WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Tonight

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

Low: 63 °F

Tuesday

Heavy Rain Chance for Measurable Precipitation 40%

Heavy
Rain

High: 75 °F

Tuesday
Night

Heavy Rain Chance for Measurable Precipitation 20%

Heavy
Rain

Low: 59 °F

Wednesday

Mostly Sunny

Mostly
Sunny

High: 80 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 56 °F

Thursday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 79 °F

Thursday
Night

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

Low: 58 °F

Friday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 79 °F

Friday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 58 °F

Detailed Forecast

  • Tonight Isolated showers before midnight, then isolated showers after 5am. Mostly cloudy, with a low around 63. Northwest wind 8 to 13 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 75. North wind 6 to 9 mph becoming east northeast in the afternoon. Chance of precipitation is 40%.
  • Tuesday Night Isolated showers and thunderstorms before midnight. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 59. East wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 20%.
  • Wednesday Mostly sunny, with a high near 80. Light and variable wind becoming east southeast 5 to 8 mph in the afternoon.
  • Wednesday Night Partly cloudy, with a low around 56. East southeast wind 5 to 8 mph becoming light and variable.
  • Thursday A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79. Southwest wind around 7 mph becoming east in the afternoon.
  • Thursday Night A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 58. East northeast wind 5 to 7 mph becoming west northwest after midnight.
  • Friday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
  • Friday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
  • Saturday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
  • Saturday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 58.
  • Sunday Mostly sunny, with a high near 82.
  • Sunday Night A slight chance of showers and thunderstorms. Partly cloudy, with a low around 59.
  • Monday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.