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

Winter Weather Advisory until December 27, 06:00 PM MST

Current conditions at

YELLOW MULE (YLWM8)

Lat: 45.1661°NLon: 111.35954°WElev: 9200.0ft.

3°F

-16°C

Humidity	77%
Wind Speed	WSW 11 MPH
Barometer	NA
Dewpoint	-3°F (-19°C)
Visibility	NA
Wind Chill	-13°F (-25°C)
Last update	27 Dec 05:04 PM MST

More Information:

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

Extended Forecast for

15 Miles SE Big Sky MT

Winter Weather Advisory December 27, 05:29pm until December 27, 06:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 27, 05:29pm until December 27, 06:00pm
NOW until 6:00pm Sat
Winter Weather Advisory
This Afternoon
High: 11 °F
Chance Snow
Tonight
Low: -1 °F
Chance Snow
then Partly
Cloudy
Sunday
High: 17 °F
Sunny
Sunday Night
Low: 2 °F
Mostly Clear
Monday
High: 26 °F
Sunny
Monday Night
Low: 12 °F
Partly Cloudy
Tuesday
High: 31 °F
Mostly Sunny
Tuesday Night
Low: 15 °F
Partly Cloudy

Detailed Forecast

This Afternoon

A 40 percent chance of snow. Partly sunny, with a steady temperature around 11. Wind chill values as low as zero. West northwest wind around 8 mph, with gusts as high as 18 mph. Total daytime snow accumulation of less than one inch possible.

Tonight

A 30 percent chance of snow, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -10. West wind 3 to 6 mph. New snow accumulation of less than a half inch possible.

Sunday

Sunny, with a high near 17. Wind chill values as low as -10. Light and variable wind becoming west southwest around 6 mph in the afternoon.

Sunday Night

Mostly clear, with a low around 2. Wind chill values as low as -10. South wind around 5 mph.

Monday

Sunny, with a high near 26. Southwest wind around 6 mph.

Monday Night

Partly cloudy, with a low around 12. South southwest wind around 6 mph.

Tuesday

Mostly sunny, with a high near 31. South southwest wind around 6 mph.

Tuesday Night

Partly cloudy, with a low around 15. South southwest wind around 6 mph.