National Weather Service United States Department of Commerce

Heavy rain possible for parts of the northern Rockies & Plains; Severe storms for the Upper Midwest

An unseasonably strong storm system in the northwest U.S. will bring showers and thunderstorms, some heavy, to parts of the northern Rockies and northern Plains through Saturday. Isolated flash floods will be possible in these areas. Some of the storms could be severe in parts of the Dakotas into Minnesota, with large hail and damaging winds.
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Hazardous Weather Conditions

Current Conditions

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7 Miles ENE Moose WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Tonight

Heavy Rain Chance for Measurable Precipitation 70%

Heavy
Rain

Low: 42 °F

Saturday

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

High: 58 °F

Saturday
Night

Scattered Showers Chance for Measurable Precipitation 40%

Scattered
Showers

Low: 40 °F

Sunday

Scattered Showers Chance for Measurable Precipitation 30%

Scattered
Showers

High: 59 °F

Sunday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 38 °F

Monday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 60 °F

Monday
Night

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

Low: 40 °F

Tuesday

Slight Chance Thunderstorms Chance for Measurable Precipitation 20%

Slight Chc
Thunderstorms

High: 65 °F

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: 39 °F

Detailed Forecast

  • Tonight Showers likely and possibly a thunderstorm before 2am, then scattered showers and thunderstorms, mainly between 2am and 5am. Some of the storms could produce heavy rain. Mostly cloudy, with a low around 42. South wind 5 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Saturday Scattered showers, with thunderstorms also possible after noon. Increasing clouds, with a high near 58. West southwest wind 6 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
  • Saturday Night Scattered showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 40. South southwest wind 5 to 8 mph becoming north after midnight. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
  • Sunday Scattered showers and thunderstorms. Partly sunny, with a high near 59. South southwest wind 6 to 10 mph. Chance of precipitation is 30%.
  • Sunday Night A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 38. West southwest wind 5 to 7 mph becoming light and variable.
  • Monday A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 60. Southeast wind 5 to 8 mph becoming southwest in the afternoon.
  • Monday Night A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 40. Southwest wind 5 to 7 mph becoming light and variable after midnight.
  • Tuesday A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 65.
  • Tuesday Night Partly cloudy, with a low around 39.
  • Wednesday Sunny, with a high near 69.
  • Wednesday Night Mostly clear, with a low around 42.
  • Thursday Mostly sunny, with a high near 72.
  • Thursday Night Mostly clear, with a low around 44.
  • Friday Mostly sunny, with a high near 70.