National Weather Service United States Department of Commerce

Developing storm will spread rain across eastern U.S.; thunderstorms in the Southeast

A storm system developing in the South will move up the Mississippi River Valley on Sunday bringing rainfall to much of the eastern U.S., along with thunderstorms in the southeastern states. Some of the thunderstorms in the Southeast could produce large hail, damaging wind and heavy rain.
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Current Conditions

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10 Miles ENE Etna WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Overnight

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

Low: 20 °F

Sunday

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

High: 29 °F

Sunday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 20 °F

Monday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 28 °F

Monday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 14 °F

Tuesday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 31 °F

Tuesday
Night

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 28 °F

Wednesday

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

High: 40 °F

Wednesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 20 °F

Detailed Forecast

  • Overnight Snow showers likely. Mostly cloudy, with a low around 20. West wind around 13 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of 1 to 3 inches possible.
  • Sunday Snow showers likely, mainly before 7am. Cloudy, with a high near 29. Breezy, with a west wind 15 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
  • Sunday Night Snow showers likely, mainly between 11pm and 2am. Cloudy, with a low around 20. West southwest wind around 17 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
  • Monday Scattered snow showers. Mostly cloudy, with a high near 28. West wind 10 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
  • Monday Night A 20 percent chance of snow showers. Mostly cloudy, with a low around 14. Southwest wind 7 to 13 mph.
  • Tuesday A 50 percent chance of snow. Mostly cloudy, with a high near 31. Southwest wind 7 to 9 mph.
  • Tuesday Night A 50 percent chance of snow. Mostly cloudy, with a low around 28. West southwest wind 6 to 8 mph.
  • Wednesday A slight chance of rain and snow. Partly sunny, with a high near 40. Chance of precipitation is 20%.
  • Wednesday Night A 20 percent chance of snow. Mostly cloudy, with a low around 20.
  • Thanksgiving Day A 20 percent chance of snow. Partly sunny, with a high near 39.
  • Thursday Night Partly cloudy, with a low around 19.
  • Friday Mostly sunny, with a high near 36.
  • Friday Night Partly cloudy, with a low around 18.
  • Saturday Partly sunny, with a high near 36.