Dangerous Heat in the East; Critical Fire Weather in the Southwest

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Heat is likely to continue across the eastern U.S. through the Independence Day holiday weekend. Critical fire weather conditions will continue today and likely Tuesday across portions of the Four Corners and northern High Plains. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

43°F

6°C

Humidity	77%
Wind Speed	S 6 MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Wind Chill	39°F (4°C)
Last update	29 Jun 10:15 AM MDT

More Information:

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

Extended Forecast for

Mammoth WY

Today
High: 51 °F
Showers and
Breezy
Tonight
Low: 43 °F
Scattered
Showers
Tuesday
High: 67 °F
Mostly Sunny
Tuesday Night
Low: 42 °F
Partly Cloudy
Wednesday
High: 69 °F
Sunny then
Chance
T-storms
Wednesday Night
Low: 43 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 73 °F
Mostly Sunny
Thursday Night
Low: 46 °F
Partly Cloudy
Friday
High: 73 °F
Partly Sunny
then Chance
T-storms

Detailed Forecast

Today

Showers and possibly a thunderstorm, mainly before 5pm, then scattered showers and thunderstorms after 5pm. High near 51. Breezy, with a southwest wind 13 to 16 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

Tonight

Scattered showers and thunderstorms before 9pm, then isolated showers after 2am. Mostly cloudy, with a low around 43. Southwest wind 6 to 10 mph becoming south southeast in the evening. Chance of precipitation is 30%.

Tuesday

Mostly sunny, with a high near 67. Southwest wind 5 to 11 mph.

Tuesday Night

Partly cloudy, with a low around 42. South southeast wind 5 to 10 mph.

Wednesday

A 30 percent chance of showers and thunderstorms after noon. Sunny, with a high near 69. South southeast wind 5 to 11 mph becoming southwest in the afternoon.

Wednesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 43. Southwest wind 5 to 9 mph becoming south southeast after midnight. Winds could gust as high as 22 mph.

Thursday

Mostly sunny, with a high near 73. South southeast wind 6 to 14 mph becoming southwest in the afternoon. Winds could gust as high as 29 mph.

Thursday Night

Partly cloudy, with a low around 46.

Friday

A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 73.

Friday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46.

Independence Day

A slight chance of showers and thunderstorms. Sunny, with a high near 74.

Saturday Night

Mostly clear, with a low around 46.