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.
Read More...

Current Conditions

En Español

Share |

5 Miles NE South Pass City WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

This
Afternoon

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: 31 °F

Tonight

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

Low: 21 °F

Monday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 25 °F

Monday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: 11 °F

Tuesday

Mostly Sunny

Mostly
Sunny

High: 23 °F

Tuesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 19 °F

Wednesday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 33 °F

Wednesday
Night

Snow Likely Chance for Measurable Precipitation 60%

Snow
Likely

Low: 22 °F

Christmas
Day

Snow Likely Chance for Measurable Precipitation 70%

Snow
Likely

High: 22 °F

Detailed Forecast

  • This Afternoon Snow likely. Partly sunny, with a steady temperature around 31. Breezy, with a west wind around 26 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. Total daytime snow accumulation of 1 to 2 inches possible.
  • Tonight Snow likely with areas of blowing snow. Mostly cloudy, with a low around 21. Breezy, with a west wind 24 to 29 mph decreasing to 17 to 22 mph after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
  • Monday A 50 percent chance of snow. Mostly cloudy, with a high near 25. West wind 13 to 16 mph, with gusts as high as 24 mph. New snow accumulation of less than a half inch possible.
  • Monday Night A 20 percent chance of snow before 11pm. Mostly cloudy, with a low around 11. Wind chill values as low as zero. Northwest wind 9 to 16 mph, with gusts as high as 24 mph.
  • Tuesday Mostly sunny, with a high near 23. West northwest wind around 10 mph.
  • Tuesday Night Mostly cloudy, with a low around 19. West wind 11 to 13 mph, with gusts as high as 20 mph.
  • Wednesday A 20 percent chance of snow before 11am. Partly sunny, with a high near 33. West wind 15 to 17 mph, with gusts as high as 26 mph.
  • Wednesday Night Snow likely. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
  • Christmas Day Snow likely. Cloudy, with a high near 22. Chance of precipitation is 70%.
  • Thursday Night A 50 percent chance of snow. Mostly cloudy, with a low around 7.
  • Friday A slight chance of snow. Partly sunny, with a high near 16.
  • Friday Night Partly cloudy, with a low around -1.
  • Saturday Mostly sunny, with a high near 22.