National Weather Service United States Department of Commerce

On Saturday, severe weather will be possible across portions of the northern Plains while dry and hot conditions begin returning to the West.

Severe weather is possible over parts of the northern Plains on Saturday. During the late afternoon and early evening hours, large hail and isolated tornadoes will be the primary threats with damaging winds becoming the greatest threat in the late evening hours. Out west, hot and dry conditions begin to return bringing increased heat dangers and fire weather concerns.
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Current Conditions

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Mt Washburn WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Tonight

Scattered Showers Chance for Measurable Precipitation 30%

Scattered
Showers

Low: 43 °F

Saturday

Thunderstorms Likely Chance for Measurable Precipitation 60%

Thunderstorms
Likely

High: 56 °F

Saturday
Night

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

Low: 35 °F

Sunday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 49 °F

Sunday
Night

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

Low: 33 °F

Labor
Day

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 53 °F

Monday
Night

Partly Cloudy

Partly
Cloudy

Low: 34 °F

Tuesday

Sunny

Sunny

High: 56 °F

Tuesday
Night

Mostly Clear

Mostly
Clear

Low: 37 °F

Detailed Forecast

  • Tonight Scattered showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 43. Southwest wind 14 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
  • Saturday Showers and thunderstorms likely, mainly after noon. Some of the storms could produce small hail and gusty winds. Mostly cloudy, with a high near 56. Breezy, with a southwest wind 14 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
  • Saturday Night A chance of rain showers before midnight, then a chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 35. West wind 7 to 10 mph becoming north northwest after midnight. Chance of precipitation is 50%. Little or no snow accumulation expected.
  • Sunday A 20 percent chance of snow showers before noon. Mostly sunny, with a high near 49. Northwest wind 7 to 17 mph becoming west southwest in the afternoon. Winds could gust as high as 26 mph.
  • Sunday Night A slight chance of rain showers before midnight, then a slight chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 33. Breezy, with a southwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
  • Labor Day A 20 percent chance of snow showers before noon. Partly sunny, with a high near 53. Breezy, with a southwest wind 17 to 24 mph, with gusts as high as 37 mph.
  • Monday Night Partly cloudy, with a low around 34. West southwest wind 10 to 16 mph, with gusts as high as 23 mph.
  • Tuesday Sunny, with a high near 56.
  • Tuesday Night Mostly clear, with a low around 37.
  • Wednesday Mostly sunny, with a high near 58.
  • Wednesday Night A slight chance of rain and snow showers. Some thunder is also possible. Partly cloudy, with a low around 37.
  • Thursday A chance of showers and thunderstorms. Partly sunny, with a high near 56.
  • Thursday Night A slight chance of rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 36.
  • Friday A slight chance of showers and thunderstorms. Partly sunny, with a high near 55.