Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

57°F

14°C

Humidity	52%
Wind Speed	SE 2 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Last update	02 Jul 09:15 AM MDT

More Information:

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

Extended Forecast for

2 Miles WSW Mammoth Hot Springs WY

Today
High: 68 °F
Sunny then
Isolated
T-storms and
Breezy
Tonight
Low: 40 °F
Isolated
T-storms then
Mostly Clear
Friday
High: 68 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 42 °F
Slight Chance
T-storms then
Mostly Clear
Independence Day
High: 73 °F
Sunny
Saturday Night
Low: 45 °F
Mostly Clear
Sunday
High: 77 °F
Sunny
Sunday Night
Low: 49 °F
Partly Cloudy
Monday
High: 77 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

Today

Isolated showers and thunderstorms after noon. Mostly sunny, with a high near 68. Breezy, with a southwest wind 7 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

Tonight

Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 40. South southwest wind 6 to 13 mph. Chance of precipitation is 20%.

Friday

A slight chance of showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 68. Southwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 10%.

Friday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly clear, with a low around 42. West wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 20%.

Independence Day

Sunny, with a high near 73. Light and variable wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 26 mph.

Saturday Night

Mostly clear, with a low around 45. West southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 25 mph.

Sunday

Sunny, with a high near 77. Light and variable wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 23 mph.

Sunday Night

Partly cloudy, with a low around 49.

Monday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77.

Monday Night

A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.