National Weather Service United States Department of Commerce

Heavy rain possible for the northern Rockies & Plains; severe storms for the Northern Plains

An unseasonably strong storm system in the northwest U.S. will bring showers and thunderstorms, with locally heavy rainfall, to the northern Rockies and northern Plains. Isolated flash floods will be possible in these areas. Some storms could become severe in parts of the Dakotas into Minnesota, with large hail and damaging winds. In addition, temperatures will be 10 to 20 degrees below average.
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Hazardous Weather Conditions

Current Conditions

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6 Miles ESE Mount Holmes WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Today

Scattered Showers Chance for Measurable Precipitation 50%

Scattered
Showers

High: 49 °F

Tonight

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

Low: 36 °F

Sunday

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

High: 52 °F

Sunday
Night

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

Low: 36 °F

Monday

Scattered Showers Chance for Measurable Precipitation 50%

Scattered
Showers

High: 60 °F

Monday
Night

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 34 °F

Tuesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 55 °F

Tuesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 38 °F

Wednesday

Sunny

Sunny

High: 66 °F

Detailed Forecast

  • Today Scattered showers, with thunderstorms also possible after noon. Some of the storms could produce small hail and gusty winds. Mostly cloudy, with a high near 49. Breezy, with a west wind 11 to 16 mph becoming north northwest 19 to 24 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Tonight Scattered rain showers before 3am, then scattered rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 36. Breezy, with a north wind 23 to 28 mph decreasing to 16 to 21 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
  • Sunday Scattered showers. Mostly cloudy, with a high near 52. Breezy, with a north northwest wind 17 to 22 mph decreasing to 7 to 12 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 40%.
  • Sunday Night A slight chance of rain showers before midnight, then a slight chance of rain and snow showers. Mostly cloudy, with a low around 36. West wind 5 to 14 mph becoming south after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
  • Monday Isolated showers, then scattered showers and thunderstorms after noon. Mostly cloudy, with a high near 60. South wind 7 to 13 mph. Chance of precipitation is 50%.
  • Monday Night Scattered rain showers before midnight, then scattered rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 34. Breezy, with a south southwest wind 17 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
  • Tuesday A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 55. Light and variable wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
  • Tuesday Night A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 38.
  • Wednesday Sunny, with a high near 66.
  • Wednesday Night Mostly clear, with a low around 40.
  • Thursday Sunny, with a high near 68.
  • Thursday Night Mostly clear, with a low around 42.
  • Friday A slight chance of showers and thunderstorms. Mostly sunny, with a high near 67.