Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

29°F

-2°C

Humidity	52%
Wind Speed	S 6 MPH
Barometer	NA
Dewpoint	13°F (-11°C)
Visibility	NA
Wind Chill	23°F (-5°C)
Last update	31 Dec 11:15 AM MST

More Information:

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

Extended Forecast for

5 Miles WNW Mount Holmes WY

Today
High: 30 °F
Sunny
Tonight
Low: 16 °F
Partly Cloudy
New Year's Day
High: 27 °F
Partly Sunny
then
Scattered
Snow Showers
Thursday Night
Low: 24 °F
Scattered
Snow Showers
Friday
High: 29 °F
Chance Snow
Showers
Friday Night
Low: 27 °F
Cloudy
Saturday
High: 31 °F
Slight Chance
Snow Showers
Saturday Night
Low: 24 °F
Chance Snow
Showers
Sunday
High: 27 °F
Chance Snow
Showers

Detailed Forecast

Today

Sunny, with a high near 30. South wind around 7 mph.

Tonight

Partly cloudy, with a low around 16. South wind around 7 mph.

New Year's Day

Scattered snow showers, mainly after 1pm. Mostly cloudy, with a high near 27. South wind 8 to 11 mph. Chance of precipitation is 50%. New snow accumulation of less than one inch possible.

Thursday Night

Scattered snow showers. Cloudy, with a low around 24. South southwest wind around 8 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

Friday

A 40 percent chance of snow showers. Mostly cloudy, with a high near 29. Southwest wind 8 to 11 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.

Friday Night

Cloudy, with a low around 27. South southwest wind around 10 mph, with gusts as high as 20 mph.

Saturday

A 20 percent chance of snow showers after 11am. Mostly cloudy, with a high near 31. South southwest wind 11 to 14 mph, with gusts as high as 28 mph.

Saturday Night

A 40 percent chance of snow showers. Mostly cloudy, with a low around 24.

Sunday

A 50 percent chance of snow showers. Mostly cloudy, with a high near 27.

Sunday Night

A 30 percent chance of snow showers. Mostly cloudy, with a low around 22.

Monday

A chance of snow showers. Mostly cloudy, with a high near 26.