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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2 Miles SE West Thumb WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Tonight

Snow Chance for Measurable Precipitation 90%

Snow

Low: 24 °F

Sunday

Snow Chance for Measurable Precipitation 100%

Snow

High: 32 °F

Sunday
Night

Snow Chance for Measurable Precipitation 90%

Snow

Low: 20 °F

Monday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 25 °F

Monday
Night

Snow Chance for Measurable Precipitation 30%

Snow

Low: -5 °F

Tuesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 20 °F

Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 15 °F

Wednesday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 28 °F

Wednesday
Night

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

Low: 15 °F

Detailed Forecast

  • Tonight Snow likely with areas of blowing snow before 11pm, then snow with areas of blowing snow after 11pm. Low around 24. Windy, with a southwest wind 21 to 31 mph, with gusts as high as 41 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 1 to 3 inches possible.
  • Sunday Snow with areas of blowing snow. High near 32. Windy, with a west southwest wind 23 to 32 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
  • Sunday Night Snow before 11pm, then snow likely with areas of blowing snow after 11pm. Low around 20. Breezy, with a west wind 21 to 26 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
  • Monday A 50 percent chance of snow showers. Mostly cloudy, with a high near 25. Wind chill values as low as zero. West wind 14 to 16 mph, with gusts as high as 23 mph. New snow accumulation of less than one inch possible.
  • Monday Night A slight chance of snow showers before 11pm, then a chance for flurries. Mostly cloudy, with a low around -5. West northwest wind 6 to 11 mph becoming light and variable after midnight. Chance of precipitation is 30%.
  • Tuesday A 20 percent chance of snow showers. Mostly cloudy, with a high near 20. Calm wind becoming west 5 to 7 mph in the afternoon.
  • Tuesday Night A 20 percent chance of snow. Mostly cloudy, with a low around 15. Southwest wind around 5 mph.
  • Wednesday A 50 percent chance of snow. Mostly cloudy, with a high near 28.
  • Wednesday Night Snow likely. Cloudy, with a low around 15. Chance of precipitation is 70%.
  • Christmas Day A 50 percent chance of snow. Mostly cloudy, with a high near 20.
  • Thursday Night A chance of snow. Mostly cloudy, with a low around 4.
  • Friday A slight chance of snow. Partly sunny, with a high near 14.
  • Friday Night A slight chance of snow. Mostly cloudy, with a low around 8.
  • Saturday A slight chance of snow. Mostly cloudy, with a high near 17.