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

OLD FAITHFUL RANGER STATION (OFAW4)

Lat: 44.456667°NLon: 110.849444°WElev: 7332.0ft.

26°F

-3°C

Humidity	98%
Wind Speed	SW 14 MPH
Barometer	NA
Dewpoint	25°F (-4°C)
Visibility	NA
Wind Chill	14°F (-10°C)
Last update	27 Dec 06:15 AM MST

More Information:

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

Extended Forecast for

5 Miles SSW Lewis Lake WY

Winter Weather Advisory December 27, 06:32am until December 27, 05:00pm

Click here for hazard details and duration

Winter Weather Advisory

Winter Weather Advisory December 27, 06:32am until December 27, 05:00pm
NOW until 5:00pm Sat
Winter Weather Advisory
Today
High: 21 °F⇓
Heavy Snow
and Breezy
Tonight
Low: -8 °F
Chance Snow
then Mostly
Clear
Sunday
High: 13 °F
Sunny
Sunday Night
Low: -5 °F
Mostly Clear
Monday
High: 22 °F
Sunny
Monday Night
Low: 4 °F
Partly Cloudy
Tuesday
High: 26 °F
Partly Sunny
Tuesday Night
Low: 7 °F
Partly Cloudy

Detailed Forecast

Today

Snow, mainly before 4pm. The snow could be heavy at times. Some thunder is also possible. Temperature falling to around 11 by 5pm. Wind chill values as low as zero. Breezy, with a southwest wind 16 to 21 mph becoming west northwest 10 to 15 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%. Total daytime snow accumulation of 3 to 7 inches possible.

Tonight

A 50 percent chance of snow before 11pm. Partly cloudy, with a low around -8. Northwest wind around 6 mph becoming calm in the evening. New snow accumulation of less than a half inch possible.

Sunday

Sunny, with a high near 13. Wind chill values as low as -10. Light west southwest wind.

Sunday Night

Mostly clear, with a low around -5. Calm wind.

Monday

Sunny, with a high near 22. Calm wind.

Monday Night

Partly cloudy, with a low around 4. Calm wind.

Tuesday

Partly sunny, with a high near 26. Calm wind.

Tuesday Night

Partly cloudy, with a low around 7.