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 SSW Diamondville WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Today

Scattered Showers Chance for Measurable Precipitation 50%

Scattered
Showers

High: 57 °F

Tonight

Scattered Showers Chance for Measurable Precipitation 30%

Scattered
Showers

Low: 40 °F

Sunday

Breezy

Breezy

High: 65 °F

Sunday
Night

Breezy

Breezy

Low: 44 °F

Monday

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

High: 70 °F

Monday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 43 °F

Tuesday

Chance Thunderstorms Chance for Measurable Precipitation 30%

Chance
Thunderstorms

High: 65 °F

Tuesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 44 °F

Wednesday

Mostly Sunny

Mostly
Sunny

High: 70 °F

Detailed Forecast

  • Today Scattered showers, with thunderstorms also possible after noon. Cloudy, with a high near 57. Breezy, with a west wind 17 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
  • Tonight Scattered showers and thunderstorms before 9pm, then isolated showers between 9pm and midnight. Mostly cloudy, with a low around 40. Breezy, with a west wind 24 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 30%.
  • Sunday Mostly sunny, with a high near 65. Breezy, with a west wind 14 to 24 mph, with gusts as high as 33 mph.
  • Sunday Night Mostly clear, with a low around 44. Breezy, with a southwest wind 11 to 16 mph increasing to 24 to 29 mph after midnight. Winds could gust as high as 40 mph.
  • Monday Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 70. Breezy, with a south southwest wind 18 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 40%.
  • Monday Night A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 43. Breezy, with a southwest wind 20 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
  • Tuesday A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. South southwest wind around 7 mph becoming west northwest in the afternoon. Chance of precipitation is 30%.
  • Tuesday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 44.
  • Wednesday Mostly sunny, with a high near 70.
  • Wednesday Night Mostly clear, with a low around 46.
  • Thursday Sunny, with a high near 75.
  • Thursday Night Mostly clear, with a low around 48.
  • Friday Sunny, with a high near 76.