Excessive Heat for the East; Excessive Rainfall for the Southwest; Severe Weather for the Center of the Nation

Extreme HeatRisk impacts will expand from the Midwest into the Mid-Atlantic and Northeast today. This level of HeatRisk is known for being rare and/or long duration with little to no overnight relief, and affects anyone without effective cooling and/or adequate hydration. Severe weather potential continues from the Great Lakes to the Central Plains today. Heavy rainfall for Southwest on Tuesday. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

55°F

13°C

Humidity	37%
Wind Speed	SSW 6 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Last update	23 Jun 12:15 PM MDT

More Information:

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

Extended Forecast for

Mammoth WY

This Afternoon
High: 65 °F
Mostly Sunny
Tonight
Low: 38 °F
Mostly Clear
Tuesday
High: 73 °F
Sunny then
Isolated
T-storms
Tuesday Night
Low: 43 °F
Partly Cloudy
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 47 °F
Mostly Clear
Thursday
High: 80 °F
Mostly Sunny
then Mostly
Sunny and
Breezy
Thursday Night
Low: 50 °F
Partly Cloudy
Friday
High: 80 °F
Mostly Sunny
then Slight
Chance
T-storms and
Breezy

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 65. Southwest wind 8 to 11 mph.

Tonight

Mostly clear, with a low around 38. Southwest wind 5 to 10 mph becoming northwest in the evening.

Tuesday

Isolated showers and thunderstorms before 4pm, then isolated showers and thunderstorms after 5pm. Increasing clouds, with a high near 73. Light and variable wind becoming southwest 5 to 10 mph in the afternoon. Chance of precipitation is 20%.

Tuesday Night

Partly cloudy, with a low around 43. Southwest wind 5 to 11 mph becoming east in the evening.

Wednesday

Sunny, with a high near 77. South southeast wind 5 to 10 mph becoming southwest in the morning. Winds could gust as high as 20 mph.

Wednesday Night

Mostly clear, with a low around 47. Southwest wind 6 to 10 mph becoming south southeast after midnight. Winds could gust as high as 20 mph.

Thursday

Mostly sunny, with a high near 80. Breezy, with a south southeast wind 6 to 11 mph becoming southwest 12 to 17 mph in the afternoon. Winds could gust as high as 31 mph.

Thursday Night

Partly cloudy, with a low around 50.

Friday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 80. Breezy.

Friday Night

Partly cloudy, with a low around 50.

Saturday

A chance of showers and thunderstorms. Mostly sunny, with a high near 79.

Saturday Night

Partly cloudy, with a low around 48.

Sunday

Sunny, with a high near 82.