Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

68°F

20°C

Humidity	46%
Wind Speed	NNE 10 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Last update	15 Aug 04:15 PM MDT

More Information:

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

Extended Forecast for

Mammoth Hot Springs WY

This Afternoon
High: 67 °F
Chance
T-storms
Tonight
Low: 42 °F
Chance
T-storms then
Mostly Cloudy
Sunday
High: 69 °F
Mostly Sunny
then Showers
Likely
Sunday Night
Low: 43 °F
Chance
Showers then
Mostly Cloudy
Monday
High: 70 °F
Partly Sunny
then Chance
T-storms
Monday Night
Low: 45 °F
Showers
Likely
Tuesday
High: 67 °F
Showers
Likely
Tuesday Night
Low: 43 °F
Chance
Showers then
Mostly Cloudy
Wednesday
High: 69 °F
Partly Sunny

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 67. West wind around 10 mph.

Tonight

A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 42. West northwest wind 5 to 14 mph becoming southwest in the evening. Winds could gust as high as 20 mph.

Sunday

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Increasing clouds, with a high near 69. West southwest wind 5 to 11 mph. Chance of precipitation is 60%.

Sunday Night

A 40 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 43. West wind 6 to 11 mph becoming light and variable after midnight.

Monday

A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. Light and variable wind becoming west southwest 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

Monday Night

A chance of showers and thunderstorms, then showers likely after midnight. Mostly cloudy, with a low around 45. West southwest wind 5 to 7 mph becoming light and variable after midnight. Chance of precipitation is 70%.

Tuesday

A chance of showers and thunderstorms before 9am, then a chance of showers between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 67. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 60%.

Tuesday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 43.

Wednesday

Partly sunny, with a high near 69.

Wednesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44.

Thursday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.

Thursday Night

Partly cloudy, with a low around 47.

Friday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 76.