Heavy Rain and Mountain Snow Lingers in California; Winter Storm Impacting the Great Lakes and Northeast U.S.

An atmospheric river will wind down through today across California with lingering heavy rainfall, heavy mountain snow, and gusty winds. A wintry mix of freezing rain, sleet, and snow will cause hazardous travel conditions for the Great Lakes into the northern Mid-Atlantic and southern New England today through Saturday morning. Areas of tree damage and power outages are possible. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

32°F

0°C

Humidity	65%
Wind Speed	SW 3 MPH
Barometer	NA
Dewpoint	22°F (-6°C)
Visibility	NA
Last update	26 Dec 08:15 PM MST

More Information:

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

Extended Forecast for

17 Miles W Gardiner MT

Winter Weather Advisory December 26, 09:23pm until December 27, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 26, 09:23pm until December 27, 05:00pm
NOW until 5:00pm Sat
Winter Weather Advisory
Tonight
Low: 18 °F
Breezy.
Patchy
Blowing Snow
then Snow
Showers
Likely
Saturday
High: 17 °F⇓
Breezy. Snow
Showers then
Chance Snow
Showers
Saturday Night
Low: -6 °F
Slight Chance
Snow Showers
then Partly
Cloudy
Sunday
High: 9 °F
Cold
Sunday Night
Low: 0 °F
Mostly Clear
Monday
High: 17 °F
Sunny
Monday Night
Low: 9 °F
Partly Cloudy
Tuesday
High: 22 °F
Partly Sunny

Detailed Forecast

Tonight

Snow showers likely, mainly after 5am. Some thunder is also possible. Patchy blowing snow before 11pm. Mostly cloudy, with a steady temperature around 18. Wind chill values as low as zero. Breezy, with a south southwest wind 20 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

Saturday

Snow showers, mainly before 4pm. Some thunder is also possible. Temperature falling to around 3 by 5pm. Wind chill values as low as -15. Breezy, with a west wind 13 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

Saturday Night

A 20 percent chance of snow showers before 11pm. Partly cloudy, with a low around -6. Wind chill values as low as -25. West northwest wind 9 to 13 mph.

Sunday

Sunny and cold, with a high near 9. Wind chill values as low as -25. West southwest wind 7 to 9 mph.

Sunday Night

Mostly clear, with a low around 0. South southwest wind 9 to 14 mph.

Monday

Sunny, with a high near 17. South southwest wind 8 to 13 mph.

Monday Night

Partly cloudy, with a low around 9. South southwest wind 11 to 14 mph.

Tuesday

Partly sunny, with a high near 22.

Tuesday Night

Partly cloudy, with a low around 12.