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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Hazardous Weather Conditions

Current Conditions

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Riverton WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Overnight

Mostly Cloudy

Mostly
Cloudy

Low: -8 °C

Sunday

Windy

Windy

High: 6 °C

Sunday
Night

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

Low: -6 °C

Monday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 0 °C

Monday
Night

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

Low: -12 °C

Tuesday

Mostly Sunny

Mostly
Sunny

High: -2 °C

Tuesday
Night

Partly Cloudy

Partly
Cloudy

Low: -9 °C

Wednesday

Mostly Sunny

Mostly
Sunny

High: 2 °C

Wednesday
Night

Chance Snow Chance for Measurable Precipitation 40%

Chance
Snow

Low: -9 °C

Detailed Forecast

  • Overnight Mostly cloudy, with a steady temperature around -22. Calm wind.
  • Sunday Partly sunny, with a high near 6. Windy, with a light and variable wind becoming west northwest 43 to 48 km/h in the morning. Winds could gust as high as 65 km/h.
  • Sunday Night A slight chance of rain showers before 11pm, then a slight chance of snow showers. Mostly cloudy, with a low around -6. Breezy, with a northwest wind 27 to 32 km/h decreasing to 18 to 23 km/h in the evening. Winds could gust as high as 48 km/h. Chance of precipitation is 20%.
  • Monday A 20 percent chance of snow showers. Partly sunny, with a high near 0. North northwest wind 16 to 26 km/h, with gusts as high as 37 km/h.
  • Monday Night A 20 percent chance of snow showers. Mostly cloudy, with a low around -12. West wind 10 to 13 km/h.
  • Tuesday Mostly sunny, with a high near -2. West southwest wind 8 to 11 km/h.
  • Tuesday Night Partly cloudy, with a low around -9. Southwest wind 8 to 10 km/h.
  • Wednesday Mostly sunny, with a high near 2.
  • Wednesday Night A 40 percent chance of snow. Mostly cloudy, with a low around -9.
  • Christmas Day Snow likely. Mostly cloudy, with a high near -3. Chance of precipitation is 60%.
  • Thursday Night A chance of snow. Mostly cloudy, with a low around -17.
  • Friday Mostly sunny, with a high near -7.
  • Friday Night Partly cloudy, with a low around -20.
  • Saturday Mostly sunny, with a high near -6.