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.

57°F

14°C

Humidity	53%
Wind Speed	SSW 6 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Last update	30 Jun 09:15 PM MDT

More Information:

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

Extended Forecast for

3 Miles WNW Mammoth Hot Springs WY

Tonight
Low: 39 °F
Partly Cloudy
Wednesday
High: 63 °F
Sunny then
Slight Chance
T-storms and
Breezy
Wednesday Night
Low: 42 °F
Slight Chance
T-storms and
Breezy then
Partly Cloudy
Thursday
High: 65 °F
Sunny then
Slight Chance
T-storms and
Breezy
Thursday Night
Low: 45 °F
Slight Chance
T-storms and
Breezy then
Partly Cloudy
Friday
High: 66 °F
Mostly Sunny
then Chance
T-storms
Friday Night
Low: 45 °F
Chance
T-storms then
Partly Cloudy
Independence Day
High: 70 °F
Sunny
Saturday Night
Low: 48 °F
Mostly Clear

Detailed Forecast

Tonight

Partly cloudy, with a low around 39. South southwest wind 8 to 13 mph.

Wednesday

A slight chance of showers and thunderstorms between 1pm and 2pm. Sunny, with a high near 63. Breezy, with a southwest wind 7 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 10%.

Wednesday Night

A 20 percent chance of showers and thunderstorms before 10pm. Partly cloudy, with a low around 42. Breezy, with a south wind 8 to 15 mph, with gusts as high as 21 mph.

Thursday

A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 65. Breezy, with a southwest wind 8 to 17 mph, with gusts as high as 29 mph.

Thursday Night

A 10 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 45. Breezy, with a west southwest wind 7 to 16 mph becoming south after midnight. Winds could gust as high as 26 mph.

Friday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 66. South wind 8 to 14 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 45. West southwest wind 5 to 7 mph becoming light and variable after midnight.

Independence Day

Sunny, with a high near 70.

Saturday Night

Mostly clear, with a low around 48.

Sunday

Sunny, with a high near 74.

Sunday Night

Mostly clear, with a low around 51.

Monday

Sunny, with a high near 76.

Monday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 52.