National Weather Service United States Department of Commerce

Heavy rain and mountain snow across the northwestern U.S. this weekend

A Pacific storm system will continue to impact the West Coast through Sunday. Heavy rainfall could lead to flash flooding, river and small stream flooding, as well as mudslides and debris flows, especially over burn scars. At higher elevations, strong winds and heavy snowfall, with accumulations of 1 to 3 feet, could result in hazardous travel through mountain passes.
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Current Conditions

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9 Miles N Boulder WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Overnight

Snow Chance for Measurable Precipitation 90%

Snow

Low: 23 °F

Sunday

Snow Chance for Measurable Precipitation 100%

Snow

High: 37 °F

Sunday
Night

Snow Chance for Measurable Precipitation 90%

Snow

Low: 26 °F

Monday

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

High: 30 °F

Monday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 4 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 28 °F

Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 21 °F

Wednesday

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

High: 35 °F

Wednesday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 21 °F

Detailed Forecast

  • Overnight Snow. Low around 23. West northwest wind 5 to 7 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 2 inches possible.
  • Sunday Snow with areas of blowing snow. High near 37. Windy, with a light west southwest wind becoming west 27 to 32 mph in the morning. Winds could gust as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
  • Sunday Night Snow before 11pm, then snow likely after 11pm. Low around 26. Breezy, with a west wind 17 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
  • Monday Snow showers likely with areas of blowing snow before 11am, then areas of blowing snow and a chance of snow showers after 11am. Mostly cloudy, with a high near 30. Blustery, with a west northwest wind 18 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
  • Monday Night A 20 percent chance of snow showers before 11pm. Mostly cloudy, with a low around 4. North wind 9 to 16 mph, with gusts as high as 23 mph.
  • Tuesday Mostly sunny, with a high near 28. Northwest wind 7 to 11 mph.
  • Tuesday Night A 20 percent chance of snow. Mostly cloudy, with a low around 21. Northwest wind 7 to 9 mph.
  • Wednesday A 40 percent chance of snow. Partly sunny, with a high near 35.
  • Wednesday Night Snow likely. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
  • Christmas Day Snow likely. Mostly cloudy, with a high near 25. Chance of precipitation is 60%.
  • Thursday Night A chance of snow. Mostly cloudy, with a low around 8.
  • Friday Occasional snow showers. Partly sunny, with a high near 19.
  • Friday Night Mostly cloudy, with a low around 6.
  • Saturday Occasional flurries. Partly sunny, with a high near 22.