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	70%
Wind Speed	SSE 10 MPH
Barometer	NA
Dewpoint	23°F (-5°C)
Visibility	NA
Wind Chill	24°F (-4°C)
Last update	26 Dec 10:15 PM MST

More Information:

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

Extended Forecast for

6 Miles WSW Gardiner MT

Winter Weather Advisory December 26, 11:00pm until December 27, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 26, 11:00pm until December 27, 05:00pm
NOW until 5:00pm Sat
Winter Weather Advisory
Tonight
Low: 17 °F
Heavy Snow
and Very
Windy
Saturday
High: 15 °F⇓
Snow Showers
and Windy
then Chance
Snow Showers
and Breezy
Saturday Night
Low: -6 °F
Blustery.
Slight Chance
Snow Showers
then Partly
Cloudy
Sunday
High: 6 °F
Cold
Sunday Night
Low: -1 °F
Mostly Clear
and Breezy
Monday
High: 13 °F
Sunny and
Breezy then
Sunny
Monday Night
Low: 7 °F
Partly Cloudy
and Breezy
Tuesday
High: 18 °F
Partly Sunny
and Breezy
then Partly
Sunny

Detailed Forecast

Tonight

Snow showers likely, mainly after 4am. The snow could be heavy at times. Mostly cloudy, with a steady temperature around 17. Wind chill values as low as -5. Very windy, with a southwest wind 31 to 36 mph, with gusts as high as 49 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of 2 to 4 inches possible.

Saturday

Snow showers, mainly before 4pm. Temperature falling to around 2 by 5pm. Wind chill values as low as -20. Windy, with a west northwest wind 27 to 32 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 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. Blustery, with a northwest wind 13 to 17 mph, with gusts as high as 24 mph.

Sunday

Sunny and cold, with a high near 6. Wind chill values as low as -25. Southwest wind 7 to 11 mph.

Sunday Night

Mostly clear, with a low around -1. Breezy, with a south southwest wind 11 to 17 mph.

Monday

Sunny, with a high near 13. Breezy, with a south southwest wind 9 to 15 mph.

Monday Night

Partly cloudy, with a low around 7. Breezy, with a south southwest wind 15 to 18 mph.

Tuesday

Partly sunny, with a high near 18. Breezy.

Tuesday Night

Partly cloudy, with a low around 9. Breezy.