Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

56°F

13°C

Humidity	46%
Wind Speed	SSW 3 MPH
Barometer	NA
Dewpoint	35°F (2°C)
Visibility	NA
Last update	05 Jul 04:15 AM MDT

More Information:

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

Extended Forecast for

Mammoth WY

Today
High: 87 °F
Sunny then
Slight Chance
T-storms
Tonight
Low: 55 °F
Mostly Cloudy
Monday
High: 83 °F
Partly Sunny
then Chance
T-storms
Monday Night
Low: 55 °F
Showers
Likely then
Slight Chance
Showers
Tuesday
High: 82 °F
Mostly Sunny
then Chance
T-storms
Tuesday Night
Low: 54 °F
Slight Chance
T-storms then
Mostly Clear
Wednesday
High: 84 °F
Sunny then
Chance
T-storms
Wednesday Night
Low: 53 °F
Chance
Showers then
Partly Cloudy
Thursday
High: 83 °F
Sunny

Detailed Forecast

Today

A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 87. South southeast wind 6 to 14 mph becoming west in the afternoon. Winds could gust as high as 21 mph.

Tonight

Mostly cloudy, with a low around 55. Northwest wind 6 to 11 mph becoming light and variable after midnight.

Monday

A 30 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 83. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

Monday Night

Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly clear during the early evening, then becoming mostly cloudy, with a low around 55. Southwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 60%.

Tuesday

A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 82. Light and variable wind becoming west 5 to 8 mph in the morning.

Tuesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 54. Northwest wind around 6 mph becoming calm in the evening.

Wednesday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Calm wind becoming west southwest 5 to 9 mph in the afternoon. Winds could gust as high as 21 mph.

Wednesday Night

A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53.

Thursday

Sunny, with a high near 83.

Thursday Night

Mostly clear, with a low around 53.

Friday

Sunny, with a high near 87.

Friday Night

Mostly clear, with a low around 56.

Saturday

Sunny, with a high near 91.