Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Yellowstone Lake (KP60)

Lat: 44.54444°NLon: 110.42111°WElev: 7835.0ft.

29°F

-2°C

Humidity	84%
Wind Speed	W 9 MPH
Barometer	30.12 in (1019.98 mb)
Dewpoint	25°F (-4°C)
Visibility	NA
Wind Chill	21°F (-6°C)
Last update	08 Dec 07:56 PM MST

More Information:

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

Extended Forecast for

13 Miles ESE Lewis Lake WY

Winter Storm Warning until December 10, 05:00pm

Click here for hazard details and duration

Winter Storm Warning

Winter Storm Warning until December 10, 05:00pm
NOW until 5:00pm Wed
Winter Storm Warning
Tonight
Low: 24 °F⇑
Snow Showers
and Areas
Blowing Snow
Tuesday
High: 28 °F
Heavy Snow
and Blowing
Snow
Tuesday Night
Low: 23 °F
Snow Showers
and Windy
Wednesday
High: 30 °F
Snow Showers
and Windy
Wednesday Night
Low: 27 °F
Snow Showers
Likely and
Windy
Thursday
High: 28 °F
Snow Showers
Likely and
Breezy
Thursday Night
Low: 27 °F
Snow Showers
Likely and
Breezy
Friday
High: 27 °F
Chance Snow
Showers and
Breezy

Detailed Forecast

Tonight

Snow showers. Areas of blowing snow. Temperature rising to around 28 by 5am. Windy, with a west southwest wind 25 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of 3 to 5 inches possible.

Tuesday

Snow showers. The snow could be heavy at times. Widespread blowing snow, mainly before 11am. High near 28. Windy, with a west southwest wind 24 to 29 mph decreasing to 15 to 20 mph in the afternoon. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of 5 to 9 inches possible.

Tuesday Night

Snow showers. Low around 23. Windy, with a west southwest wind 17 to 25 mph, with gusts as high as 36 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Wednesday

Snow showers. High near 30. Windy, with a west southwest wind 18 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

Wednesday Night

Snow showers likely. Cloudy, with a low around 27. Windy, with a west southwest wind 24 to 26 mph, with gusts as high as 37 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

Thursday

Snow showers likely. Cloudy, with a high near 28. Breezy, with a west southwest wind 17 to 24 mph, with gusts as high as 33 mph. Chance of precipitation is 70%.

Thursday Night

Snow showers likely, mainly before 11pm. Cloudy, with a low around 27. Breezy, with a west southwest wind 18 to 22 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

Friday

A 50 percent chance of snow showers. Mostly cloudy, with a high near 27. Breezy.

Friday Night

Mostly cloudy, with a low around 21. Breezy.

Saturday

Mostly sunny, with a high near 28. Breezy.

Saturday Night

Partly cloudy, with a low around 17.

Sunday

A slight chance of snow showers. Mostly sunny, with a high near 26.

Sunday Night

A slight chance of snow showers. Mostly cloudy, with a low around 17.