Heavy to Excessive Rainfall and Flooding Threats in the Central and Eastern U.S.; Heat and Fire Weather Concerns in the West

Thunderstorms producing excessive rainfall and potential flooding concerns will continue through tonight from the Southern Plains to the East Coast. Areas of greatest concern for flooding are over central Texas and the Mid-Atlantic. Heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue through Monday. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

88°F

31°C

Humidity	13%
Wind Speed	NNE 7 MPH
Barometer	NA
Dewpoint	31°F (-1°C)
Visibility	NA
Heat Index	84°F (29°C)
Last update	13 Jul 05:15 PM MDT

More Information:

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

Extended Forecast for

Mammoth WY

Tonight
Low: 55 °F
Mostly Clear
Monday
High: 90 °F
Sunny then
Chance
T-storms
Monday Night
Low: 53 °F
Chance
T-storms then
Partly Cloudy
Tuesday
High: 80 °F
Slight Chance
Showers then
Showers
Tuesday Night
Low: 49 °F
Showers
Likely then
Chance
Showers
Wednesday
High: 74 °F
Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 47 °F
Mostly Clear
Thursday
High: 83 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 49 °F
Mostly Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 55. Northwest wind 5 to 8 mph becoming calm after midnight.

Monday

A 30 percent chance of showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 90. Light and variable wind becoming west southwest 5 to 10 mph in the afternoon.

Monday Night

A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. West wind 5 to 8 mph becoming light and variable after midnight.

Tuesday

A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 80. Light and variable wind becoming northwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 80%.

Tuesday Night

Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 49. North wind 6 to 8 mph. Chance of precipitation is 70%.

Wednesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 74. North northwest wind 5 to 8 mph.

Wednesday Night

Mostly clear, with a low around 47. North northwest wind around 7 mph becoming east northeast after midnight.

Thursday

A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83.

Thursday Night

Mostly clear, with a low around 49.

Friday

A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 85.

Friday Night

Partly cloudy, with a low around 52.