National Weather Service United States Department of Commerce

Active pattern for the Pacific Northwest this week while a coastal low takes aim on the Northeast later this week

Thunderstorms with heavy rainfall is forecast to bring 5 to 7 inches of rainfall, with localized heavier amounts, to the Pacific Northwest throughout the week. Across the higher mountain elevations, measurable snow is likely. The Northeast will also be the focus of showers and thunderstorms beginning mid-week as a coastal low meanders of the Mid-Atlantic coast.
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Hazardous Weather Conditions

Current Conditions

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Yellowstone National Park WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

Today

Chance Rain/Snow Chance for Measurable Precipitation 50%

Chance
Rain/Snow

High: 44 °F

Tonight

Chance Rain/Snow Chance for Measurable Precipitation 40%

Chance
Rain/Snow

Low: 25 °F

Wednesday

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

High: 43 °F

Wednesday
Night

Partly Cloudy

Partly
Cloudy

Low: 24 °F

Thursday

Mostly Sunny

Mostly
Sunny

High: 49 °F

Thursday
Night

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

Low: 27 °F

Friday

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 53 °F

Friday
Night

Mostly Clear

Mostly
Clear

Low: 30 °F

Saturday

Mostly Sunny

Mostly
Sunny

High: 52 °F

Detailed Forecast

  • Today Scattered snow showers before 11am, then scattered rain and snow showers between 11am and noon, then scattered rain showers after noon. Some thunder is also possible. Mostly cloudy, with a high near 44. Breezy, with a southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 33 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
  • Tonight Scattered rain showers before 7pm, then scattered rain and snow showers between 7pm and 10pm, then scattered snow showers after 10pm. Some thunder is also possible. Mostly cloudy, with a low around 25. West southwest wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
  • Wednesday Scattered snow showers, mainly before 7am. Mostly sunny, with a high near 43. Southwest wind 10 to 13 mph. Chance of precipitation is 30%.
  • Wednesday Night Partly cloudy, with a low around 24. South southwest wind 7 to 13 mph.
  • Thursday Mostly sunny, with a high near 49. South southwest wind 8 to 17 mph, with gusts as high as 23 mph.
  • Thursday Night A slight chance of rain showers between 7pm and 1am, then a slight chance of snow showers after 1am. Mostly cloudy, with a low around 27. Southwest wind 9 to 16 mph. Chance of precipitation is 20%.
  • Friday A 20 percent chance of snow showers before 7am. Mostly sunny, with a high near 53. South southwest wind 7 to 9 mph.
  • Friday Night Mostly clear, with a low around 30.
  • Saturday Mostly sunny, with a high near 52.
  • Saturday Night A 20 percent chance of snow showers. Partly cloudy, with a low around 27.
  • Sunday A chance of rain and snow showers. Partly sunny, with a high near 39.
  • Sunday Night A chance of rain and snow showers. Mostly cloudy, with a low around 20.
  • Monday A chance of rain and snow showers. Partly sunny, with a high near 39.