Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

Lat: 44.977222°NLon: 110.695278°WElev: 6138.0ft.

39°F

4°C

Humidity	50%
Wind Speed	S 5 MPH
Barometer	NA
Dewpoint	22°F (-6°C)
Visibility	NA
Wind Chill	35°F (2°C)
Last update	28 Nov 12:15 PM MST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Mammoth WY

This Afternoon
High: 40 °F
Snow Showers
and Patchy
Blowing Snow
Tonight
Low: 5 °F
Scattered
Snow Showers
and Blustery
then Mostly
Clear
Saturday
High: 29 °F
Increasing
Clouds
Saturday Night
Low: 15 °F
Mostly Cloudy
Sunday
High: 32 °F
Mostly Sunny
Sunday Night
Low: 9 °F
Partly Cloudy
Monday
High: 31 °F
Mostly Sunny
Monday Night
Low: 20 °F
Chance Snow
Showers
Tuesday
High: 33 °F
Snow Showers
Likely

Detailed Forecast

This Afternoon

Snow showers. Patchy blowing snow after 5pm. High near 40. Breezy, with a south southwest wind 8 to 15 mph becoming west northwest. Winds could gust as high as 23 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

Tonight

Scattered snow showers, mainly before 7pm. Cloudy during the early evening, then gradual clearing, with a low around 5. Wind chill values as low as -5. Blustery, with a northwest wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.

Saturday

Increasing clouds, with a high near 29. Wind chill values as low as -5. South wind around 6 mph becoming calm in the morning.

Saturday Night

Mostly cloudy, with a low around 15. South southeast wind 5 to 7 mph becoming northeast after midnight.

Sunday

Mostly sunny, with a high near 32. Calm wind becoming north northwest around 5 mph in the afternoon.

Sunday Night

Partly cloudy, with a low around 9. Light and variable wind becoming south around 6 mph in the evening.

Monday

Mostly sunny, with a high near 31. South wind 5 to 7 mph.

Monday Night

A 30 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 20.