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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2 Miles NNE Lake WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Today

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

High: 49 °F

Tonight

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

Low: 33 °F

Sunday

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

High: 52 °F

Sunday
Night

Isolated Showers Chance for Measurable Precipitation 20%

Isolated
Showers

Low: 34 °F

Monday

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

High: 59 °F

Monday
Night

Chance Rain/Snow Chance for Measurable Precipitation 30%

Chance
Rain/Snow

Low: 33 °F

Tuesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 54 °F

Tuesday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 34 °F

Wednesday

Sunny

Sunny

High: 64 °F

Detailed Forecast

  • Today Scattered showers, with thunderstorms also possible after noon. Some of the storms could produce small hail and gusty winds. Partly sunny, with a high near 49. Breezy, with a west wind 15 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.
  • Tonight Scattered rain showers before midnight, then scattered snow showers. Some thunder is also possible. Mostly cloudy, with a low around 33. Breezy, with a north northwest wind 17 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
  • Sunday Scattered rain and snow showers before noon, then scattered rain showers. Mostly cloudy, with a high near 52. Northwest wind 10 to 17 mph, with gusts as high as 24 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
  • Sunday Night Isolated showers before midnight. Mostly cloudy, with a low around 34. West southwest wind 5 to 10 mph becoming south southwest 11 to 16 mph after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
  • Monday Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 59. South wind 6 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 40%.
  • Monday Night Scattered rain showers before midnight, then scattered rain and snow showers. Some thunder is also possible. Mostly cloudy, with a low around 33. Breezy, with a south southwest wind 18 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 30%.
  • Tuesday A slight chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 54. Calm wind becoming west northwest around 6 mph in the afternoon. Chance of precipitation is 20%.
  • Tuesday Night A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 34.
  • Wednesday Sunny, with a high near 64.
  • Wednesday Night Mostly clear, with a low around 36.
  • Thursday Sunny, with a high near 67.
  • Thursday Night Mostly clear, with a low around 38.
  • Friday Mostly sunny, with a high near 67.