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

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

34°F

1°C

Humidity	74%
Wind Speed	S 10 MPH
Barometer	NA
Dewpoint	27°F (-3°C)
Visibility	NA
Wind Chill	26°F (-3°C)
Last update	08 Dec 08:15 PM MST

More Information:

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

Extended Forecast for

Gardiner MT

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: 37 °F
Rain/Snow
Likely then
Showers
Likely
Tuesday
High: 46 °F
Rain/Snow
Tuesday Night
Low: 33 °F
Snow Showers
then
Rain/Snow
Wednesday
High: 49 °F
Rain/Snow
then Chance
Showers
Wednesday Night
Low: 41 °F
Chance
Showers
Thursday
High: 48 °F
Showers
Likely
Thursday Night
Low: 38 °F
Chance
Rain/Snow
Friday
High: 48 °F
Chance
Rain/Snow
then Slight
Chance
Showers

Detailed Forecast

Tonight

Rain and snow showers likely, becoming all rain after 10pm. Snow level 5900 feet rising to 6400 feet after midnight. Cloudy, with a low around 37. South southeast wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

Tuesday

Rain and snow showers before 2pm, then rain showers likely between 2pm and 4pm, then scattered rain and snow showers after 4pm. Snow level 6900 feet lowering to 5600 feet in the afternoon . High near 46. South wind 9 to 14 mph becoming west northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Tuesday Night

Snow showers before 2am, then rain and snow showers. Low around 33. West wind 7 to 9 mph becoming south in the evening. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

Wednesday

Rain and snow showers, becoming all rain after 8am. High near 49. Southwest wind 10 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Wednesday Night

A 50 percent chance of showers. Mostly cloudy, with a low around 41. Southwest wind 11 to 14 mph, with gusts as high as 28 mph.

Thursday

Showers likely, mainly after 11am. Mostly cloudy, with a high near 48. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

Thursday Night

A chance of rain showers before 11pm, then a chance of rain and snow showers. Mostly cloudy, with a low around 38. West southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.

Friday

A chance of rain and snow showers before 11am, then a slight chance of rain showers. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.

Friday Night

Mostly cloudy, with a low around 35.

Saturday

Partly sunny, with a high near 48.

Saturday Night

Partly cloudy, with a low around 28.

Sunday

Partly sunny, with a high near 46.

Sunday Night

Mostly cloudy, with a low around 28.

Monday

Partly sunny, with a high near 45.