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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22 Miles ENE McKinnon WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Overnight

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: 21 °F

Sunday

Windy

Windy

High: 33 °F

Sunday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 16 °F

Monday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 33 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 14 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 41 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 27 °F

Wednesday

Mostly Sunny

Mostly
Sunny

High: 46 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 26 °F

Detailed Forecast

  • Overnight Scattered snow showers, mainly after 3am. Mostly cloudy, with a low around 21. Windy, with a west northwest wind 20 to 30 mph, with gusts as high as 41 mph. Chance of precipitation is 40%. Total nighttime snow accumulation of less than one inch possible.
  • Sunday Partly sunny, with a high near 33. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 41 mph.
  • Sunday Night A 20 percent chance of snow showers. Partly cloudy, with a low around 16. Wind chill values as low as zero. Blustery, with a west northwest wind 16 to 22 mph, with gusts as high as 33 mph.
  • Monday A 20 percent chance of snow showers. Partly sunny, with a high near 33. Wind chill values as low as zero. Breezy, with a west northwest wind 18 to 22 mph, with gusts as high as 33 mph.
  • Monday Night Partly cloudy, with a low around 14. West northwest wind 13 to 18 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 28 mph.
  • Tuesday Mostly sunny, with a high near 41. West wind around 11 mph.
  • Tuesday Night Partly cloudy, with a low around 27. West wind 10 to 14 mph, with gusts as high as 21 mph.
  • Wednesday Mostly sunny, with a high near 46.
  • Wednesday Night Partly cloudy, with a low around 26.
  • Thanksgiving Day Mostly sunny, with a high near 47.
  • Thursday Night Partly cloudy, with a low around 21.
  • Friday Mostly sunny, with a high near 44.
  • Friday Night Partly cloudy, with a low around 20.
  • Saturday Mostly sunny, with a high near 40.