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

Mammoth WY

Today
High: 75 °F
Sunny
Tonight
Low: 43 °F
Partly Cloudy
Friday
High: 73 °F
Sunny then
Sunny and
Breezy
Friday Night
Low: 46 °F
Partly Cloudy
and Breezy
then Mostly
Cloudy
Saturday
High: 62 °F
Showers
Likely and
Breezy
Saturday Night
Low: 37 °F
Showers then
Rain/Snow
Sunday
High: 46 °F
Rain/Snow
Sunday Night
Low: 29 °F
Rain/Snow
Columbus Day
High: 47 °F
Rain/Snow
Likely

Detailed Forecast

Today

Sunny, with a high near 75. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

Tonight

Partly cloudy, with a low around 43. Southwest wind 7 to 9 mph becoming south southeast after midnight.

Friday

Sunny, with a high near 73. Breezy, with a south southwest wind 8 to 13 mph becoming southwest 15 to 20 mph in the afternoon. Winds could gust as high as 32 mph.

Friday Night

Partly cloudy, with a low around 46. Breezy, with a south wind 10 to 15 mph, with gusts as high as 32 mph.

Saturday

Showers likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 62. Breezy, with a south southwest wind 10 to 16 mph, with gusts as high as 30 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 3am, then rain, possibly mixed with snow showers. Some thunder is also possible. Low around 37. South southwest wind around 9 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%.

Sunday

Rain and snow showers. Some thunder is also possible. High near 46. North wind 3 to 8 mph. Chance of precipitation is 100%.

Sunday Night

Rain and snow showers. Snow level 7900 feet lowering to 6700 feet after midnight . Low around 29. Chance of precipitation is 90%.

Columbus Day

Rain and snow showers likely, mainly before noon. Snow level 6500 feet rising to 8000 feet in the afternoon. Mostly cloudy, with a high near 47. Chance of precipitation is 60%.

Monday Night

A slight chance of rain showers before midnight, then a slight chance of rain and snow showers. Partly cloudy, with a low around 33. Chance of precipitation is 20%.

Tuesday

A slight chance of rain and snow showers. Mostly sunny, with a high near 57.

Tuesday Night

A chance of rain and snow showers. Partly cloudy, with a low around 35.

Wednesday

A chance of rain and snow showers. Mostly sunny, with a high near 55.