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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Hazardous Weather Conditions

Current Conditions

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20 Miles N Arminto WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Overnight

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 15 °F

Sunday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 22 °F

Sunday
Night

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 15 °F

Monday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 26 °F

Monday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 13 °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: 22 °F

Wednesday

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

High: 37 °F

Wednesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 23 °F

Detailed Forecast

  • Overnight Scattered snow showers, mainly between 2am and 5am. Mostly cloudy, with a low around 15. Wind chill values as low as -5. Blustery, with a west northwest wind 26 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 30%.
  • Sunday A 30 percent chance of snow showers, mainly after 8am. Mostly cloudy, with a high near 22. Wind chill values as low as -5. Windy, with a northwest wind 29 to 37 mph, with gusts as high as 50 mph.
  • Sunday Night Scattered snow showers. Mostly cloudy, with a low around 15. Wind chill values as low as -5. Windy, with a west northwest wind 29 to 36 mph, with gusts as high as 55 mph. Chance of precipitation is 50%. New snow accumulation of 1 to 2 inches possible.
  • Monday A 50 percent chance of snow showers. Partly sunny, with a high near 26. Wind chill values as low as -5. Windy, with a northwest wind 28 to 31 mph, with gusts as high as 47 mph. New snow accumulation of around an inch possible.
  • Monday Night A 20 percent chance of snow showers. Mostly cloudy, with a low around 13. Blustery, with a west wind 13 to 23 mph, with gusts as high as 34 mph.
  • Tuesday A 50 percent chance of snow. Mostly cloudy, with a high near 31. Breezy, with a west wind 25 to 28 mph, with gusts as high as 41 mph.
  • Tuesday Night A 50 percent chance of snow. Mostly cloudy, with a low around 22. Breezy, with a west wind 18 to 23 mph, with gusts as high as 34 mph.
  • Wednesday A chance of rain and snow. Partly sunny, with a high near 37. Breezy. Chance of precipitation is 30%.
  • Wednesday Night A 20 percent chance of snow. Partly cloudy, with a low around 23. Breezy.
  • Thanksgiving Day A 20 percent chance of snow. Partly sunny, with a high near 35.
  • Thursday Night Partly cloudy, with a low around 17.
  • Friday Mostly sunny, with a high near 33.
  • Friday Night Partly cloudy, with a low around 18.
  • Saturday Mostly sunny, with a high near 33.