Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

61°F

16°C

Humidity	50%
Wind Speed	S 12 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Last update	30 Jun 02:15 PM MDT

More Information:

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

Extended Forecast for

4 Miles SE Mammoth Hot Springs WY

This Afternoon
High: 59 °F
Isolated
T-storms
Tonight
Low: 36 °F
Isolated
T-storms then
Mostly Clear
Wednesday
High: 66 °F
Sunny then
Sunny and
Breezy
Wednesday Night
Low: 39 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 68 °F
Sunny
Thursday Night
Low: 41 °F
Slight Chance
T-storms then
Partly Cloudy
Friday
High: 69 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 41 °F
Chance
T-storms then
Partly Cloudy
Independence Day
High: 73 °F
Sunny

Detailed Forecast

This Afternoon

Isolated showers and thunderstorms. Partly sunny, with a high near 59. Southwest wind around 11 mph. Chance of precipitation is 20%.

Tonight

Isolated showers and thunderstorms before 9pm. Partly cloudy, with a low around 36. South wind 5 to 11 mph. Chance of precipitation is 10%.

Wednesday

Sunny, with a high near 66. Breezy, with a southwest wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 23 mph.

Wednesday Night

A slight chance of showers and thunderstorms between 8pm and 9pm. Partly cloudy, with a low around 39. Southwest wind 5 to 11 mph becoming south southeast after midnight. Chance of precipitation is 10%.

Thursday

Sunny, with a high near 68. South wind 5 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 29 mph.

Thursday Night

A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 41. West southwest wind 5 to 11 mph becoming south southeast after midnight. Winds could gust as high as 28 mph.

Friday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 69. South southeast wind 6 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 25 mph.

Friday Night

A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 41.

Independence Day

Sunny, with a high near 73.

Saturday Night

Clear, with a low around 43.

Sunday

Sunny, with a high near 77.

Sunday Night

Mostly clear, with a low around 46.

Monday

Mostly sunny, with a high near 78.