Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Hazardous Weather Conditions

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

23°F

-5°C

Humidity	81%
Wind Speed	S 2 MPH
Barometer	NA
Dewpoint	18°F (-8°C)
Visibility	NA
Last update	27 Dec 12:15 PM MST

More Information:

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

Extended Forecast for

16 Miles W Gardiner MT

Winter Weather Advisory December 27, 01:25pm until December 27, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 27, 01:25pm until December 27, 05:00pm
NOW until 5:00pm Sat
Winter Weather Advisory
This Afternoon
High: 19 °F
Chance Snow
Showers
Tonight
Low: -4 °F
Slight Chance
Snow Showers
then Partly
Cloudy
Sunday
High: 11 °F
Sunny
Sunday Night
Low: 0 °F
Mostly Clear
Monday
High: 20 °F
Sunny
Monday Night
Low: 9 °F
Partly Cloudy
Tuesday
High: 25 °F
Mostly Sunny
Tuesday Night
Low: 12 °F
Partly Cloudy

Detailed Forecast

This Afternoon

A 40 percent chance of snow showers. Partly sunny, with a high near 19. Wind chill values as low as -10. West wind 10 to 13 mph, with gusts as high as 21 mph. Total daytime snow accumulation of 1 to 3 inches possible.

Tonight

A 20 percent chance of snow showers before 9pm. Partly cloudy, with a low around -4. Wind chill values as low as -15. West wind 5 to 8 mph.

Sunday

Sunny, with a high near 11. Wind chill values as low as -15. Southwest wind 3 to 6 mph.

Sunday Night

Mostly clear, with a low around 0. Wind chill values as low as -10. South wind 5 to 7 mph.

Monday

Sunny, with a high near 20. South southwest wind around 7 mph.

Monday Night

Partly cloudy, with a low around 9. South southwest wind around 7 mph.

Tuesday

Mostly sunny, with a high near 25. South southwest wind around 7 mph.