Tracking Storm System Across the Eastern U.S.

A storm system will continue to produce widespread showers and thunderstorms as it progresses eastward across the central U.S. into the Northeast through the weekend. There are risks of severe thunderstorms and excessive rainfall on Saturday from the Ozarks into the mid-Mississippi River Valley with potential for damaging winds, large hail, tornadoes, and flash flooding. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

42°F

6°C

Humidity	67%
Wind Speed	SSE 4 MPH
Barometer	NA
Dewpoint	32°F (0°C)
Visibility	NA
Wind Chill	40°F (4°C)
Last update	17 Oct 06:15 PM MDT

More Information:

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

Extended Forecast for

Mammoth Hot Springs WY

Tonight
Low: 27 °F
Scattered
Showers then
Scattered
Rain/Snow
Saturday
High: 47 °F
Isolated Snow
Showers then
Sunny
Saturday Night
Low: 35 °F
Partly Cloudy
then Mostly
Cloudy and
Breezy
Sunday
High: 52 °F
Slight Chance
Showers then
Showers
Likely and
Breezy
Sunday Night
Low: 30 °F
Rain/Snow
Likely and
Breezy then
Chance
Rain/Snow
Monday
High: 47 °F
Mostly Sunny
Monday Night
Low: 27 °F
Mostly Clear
Tuesday
High: 55 °F
Sunny
Tuesday Night
Low: 31 °F
Partly Cloudy

Detailed Forecast

Tonight

Scattered rain showers before 1am, then scattered rain and snow showers between 1am and 2am, then scattered snow showers after 2am. Some thunder is also possible. Snow level 7600 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 27. South southwest wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Saturday

Isolated snow showers before 7am. Sunny, with a high near 47. West northwest wind 7 to 11 mph becoming southwest in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 20%.

Saturday Night

Partly cloudy, with a low around 35. Breezy, with a south wind 11 to 15 mph, with gusts as high as 28 mph.

Sunday

Showers likely, mainly after noon. Partly sunny, with a high near 52. Breezy, with a south wind 13 to 18 mph, with gusts as high as 34 mph. Chance of precipitation is 70%.

Sunday Night

Rain showers likely before 11pm, then rain and snow showers likely between 11pm and 2am, then a chance of snow showers after 2am. Some thunder is also possible. Snow level 8300 feet lowering to 5700 feet after midnight . Mostly cloudy, with a low around 30. Breezy, with a west wind 11 to 15 mph, with gusts as high as 32 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

Monday

Mostly sunny, with a high near 47. West wind 8 to 11 mph, with gusts as high as 23 mph.

Monday Night

Mostly clear, with a low around 27. South wind around 9 mph.

Tuesday

Sunny, with a high near 55.

Tuesday Night

Partly cloudy, with a low around 31.

Wednesday

Mostly sunny, with a high near 56.

Wednesday Night

Mostly clear, with a low around 31.