Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

82°F

28°C

Humidity	27%
Wind Speed	WSW 8 MPH
Barometer	NA
Dewpoint	45°F (7°C)
Visibility	NA
Heat Index	80°F (27°C)
Last update	22 Aug 05:15 PM 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

Tonight
Low: 49 °F
T-storms
Likely then
Mostly Cloudy
Sunday
High: 76 °F
Mostly Sunny
then Chance
T-storms and
Breezy
Sunday Night
Low: 45 °F
Slight Chance
T-storms then
Mostly Clear
Monday
High: 79 °F
Mostly Sunny
Monday Night
Low: 47 °F
Mostly Cloudy
Tuesday
High: 77 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 46 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 79 °F
Partly Sunny
Wednesday Night
Low: 46 °F
Slight Chance
T-storms then
Mostly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 49. West southwest wind around 6 mph becoming south southeast after midnight. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Sunday

A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 76. Breezy, with a south southeast wind 5 to 10 mph becoming southwest 11 to 16 mph in the afternoon. Winds could gust as high as 23 mph.

Sunday Night

A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 45. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 26 mph.

Monday

Mostly sunny, with a high near 79. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

Monday Night

Mostly cloudy, with a low around 47. West wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 20 mph.

Tuesday

A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 77. Calm wind becoming west northwest around 6 mph in the afternoon.

Tuesday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46. Light and variable wind.

Wednesday

Partly sunny, with a high near 79.

Wednesday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.

Thursday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.

Thursday Night

Mostly cloudy, with a low around 45.

Friday

Mostly sunny, with a high near 76.