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 Pacific Northwest through late 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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Old Faithful WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

This
Afternoon

Snow Chance for Measurable Precipitation 90%

Snow

High: 34 °F

Tonight

Snow Chance for Measurable Precipitation 90%

Snow

Low: 26 °F

Monday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 26 °F

Monday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: -3 °F

Tuesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 24 °F

Tuesday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 12 °F

Wednesday

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

High: 29 °F

Wednesday
Night

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

Low: 16 °F

Christmas
Day

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

High: 22 °F

Detailed Forecast

  • This Afternoon Snow. High near 34. Breezy, with a west southwest wind 20 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 90%. Total daytime snow accumulation of 2 to 4 inches possible.
  • Tonight Snow with areas of blowing snow before 11pm, then snow likely with areas of blowing snow after 11pm. Steady temperature around 26. Breezy, with a southwest wind 15 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
  • Monday A 50 percent chance of snow. Mostly cloudy, with a high near 26. Southwest wind 9 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph. New snow accumulation of less than one inch possible.
  • Monday Night A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around -3. Northwest wind 5 to 8 mph becoming light and variable after midnight.
  • Tuesday A 20 percent chance of snow showers. Partly sunny, with a high near 24. Calm wind becoming west around 6 mph in the afternoon.
  • Tuesday Night A 20 percent chance of snow showers. Mostly cloudy, with a low around 12. Light south southwest wind.
  • Wednesday A 40 percent chance of snow. Mostly cloudy, with a high near 29. South southwest wind around 6 mph.
  • Wednesday Night Snow likely. Cloudy, with a low around 16. Chance of precipitation is 70%.
  • Christmas Day Snow likely. Cloudy, with a high near 22. Chance of precipitation is 60%.
  • Thursday Night A 40 percent chance of snow. Mostly cloudy, with a low around 6.
  • Friday A slight chance of snow. Partly sunny, with a high near 17.
  • Friday Night A slight chance of snow. Mostly cloudy, with a low around 4.
  • Saturday A slight chance of snow. Partly sunny, with a high near 27.