Hurricane Isaias to Approach the Northern Gulf Coast on Friday

Isaias is expected to approach the northern Gulf Coast as a strong hurricane on Friday, bringing life-threatening storm surge, damaging winds, heavy rain, and severe thunderstorms across the region and Southeast into the weekend, with risks of flooding and tornadoes. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

39°F

4°C

Humidity	55%
Wind Speed	S 5 MPH
Barometer	NA
Dewpoint	24°F (-4°C)
Visibility	NA
Wind Chill	35°F (2°C)
Last update	08 Oct 08:15 AM MDT

More Information:

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

Extended Forecast for

4 Miles ESE Mammoth Hot Springs WY

Today
High: 71 °F
Sunny
Tonight
Low: 37 °F
Partly Cloudy
Friday
High: 69 °F
Sunny then
Sunny and
Breezy
Friday Night
Low: 41 °F
Partly Cloudy
and Breezy
then Mostly
Cloudy
Saturday
High: 58 °F
Showers
Likely and
Breezy
Saturday Night
Low: 32 °F
Showers then
Rain/Snow
Sunday
High: 44 °F
Rain/Snow
Sunday Night
Low: 25 °F
Rain/Snow
Columbus Day
High: 44 °F
Snow Showers
Likely then
Chance
Rain/Snow

Detailed Forecast

Today

Sunny, with a high near 71. Calm wind becoming west southwest 5 to 8 mph in the afternoon.

Tonight

Partly cloudy, with a low around 37. South southwest wind around 8 mph.

Friday

Sunny, with a high near 69. Breezy, with a southwest wind 8 to 13 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 36 mph.

Friday Night

Partly cloudy, with a low around 41. Breezy, with a south southwest wind 9 to 15 mph, with gusts as high as 36 mph.

Saturday

Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 58. Breezy, with a south wind 9 to 14 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 32 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday Night

Rain showers before midnight, then rain, possibly mixed with snow showers. Some thunder is also possible. Low around 32. South southwest wind 5 to 9 mph becoming north northeast after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%.

Sunday

Rain and snow showers. Some thunder is also possible. High near 44. North northeast wind around 5 mph becoming calm. Chance of precipitation is 100%.

Sunday Night

Rain and snow showers. Snow level 8100 feet lowering to 6900 feet after midnight . Low around 25. Chance of precipitation is 90%.

Columbus Day

Snow showers likely before noon, then a chance of rain and snow showers. Snow level rising to 8100 feet in the afternoon. Mostly cloudy, with a high near 44. Chance of precipitation is 60%.

Monday Night

A slight chance of rain and snow showers. Partly cloudy, with a low around 27. Chance of precipitation is 20%.

Tuesday

A slight chance of rain and snow showers. Mostly sunny, with a high near 54.

Tuesday Night

A chance of rain and snow showers. Partly cloudy, with a low around 30.

Wednesday

A chance of rain and snow showers. Mostly sunny, with a high near 51.