National Weather Service United States Department of Commerce

Rain Spreads Across the Eastern U.S. as Snow Moves Into the Great Lake States

Strong low pressure will move from the south to the Great Lake States Monday and Tuesday. A warm front will spread rain along the eastern seaboard while snow moves into the Great Lake States. Heavy snow is also expected across the northern Rocky Mountains and higher elevations of the Pacific Northwest.
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Hazardous Weather Conditions

Current Conditions

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Mammoth Hot Springs WY

7 Day Forecast

For More Weather Information:

Riverton, WY Local Forecast Office

This
Afternoon

Slight Chance Snow Chance for Measurable Precipitation 20%

Slight Chc
Snow

High: 33 °F

Tonight

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 20 °F

Monday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 29 °F

Monday
Night

Chance Snow Chance for Measurable Precipitation 30%

Chance
Snow

Low: 13 °F

Tuesday

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

High: 33 °F

Tuesday
Night

Chance Snow Chance for Measurable Precipitation 50%

Chance
Snow

Low: 32 °F

Wednesday

Slight Chance Rain/Snow Chance for Measurable Precipitation 20%

Slight Chc
Rain/Snow

High: 39 °F

Wednesday
Night

Mostly Cloudy

Mostly
Cloudy

Low: 28 °F

Thanksgiving
Day

Partly Sunny

Partly
Sunny

High: 37 °F

Detailed Forecast

  • This Afternoon A 20 percent chance of snow showers. Mostly cloudy, with a high near 33. West wind around 11 mph.
  • Tonight Scattered snow showers. Cloudy, with a low around 20. Breezy, with a west southwest wind 10 to 15 mph increasing to 19 to 24 mph in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
  • Monday Scattered snow showers, mainly before 11am. Mostly cloudy, with a high near 29. Blustery, with a northwest wind 10 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.
  • Monday Night Scattered snow showers after 11pm. Mostly cloudy, with a low around 13. Wind chill values as low as zero. Southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
  • Tuesday A 50 percent chance of snow. Mostly cloudy, with a high near 33. Southwest wind around 14 mph, with gusts as high as 21 mph. New snow accumulation of around an inch possible.
  • Tuesday Night A 50 percent chance of snow. Mostly cloudy, with a low around 32. Southwest wind 9 to 11 mph.
  • Wednesday A slight chance of snow before 11am, then a slight chance of rain and snow. Mostly cloudy, with a high near 39. Southwest wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
  • Wednesday Night Mostly cloudy, with a low around 28.
  • Thanksgiving Day Partly sunny, with a high near 37.
  • Thursday Night Partly cloudy, with a low around 18.
  • Friday Mostly sunny, with a high near 30.
  • Friday Night Mostly cloudy, with a low around 15.
  • Saturday Partly sunny, with a high near 25.