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 >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

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

62°F

17°C

Humidity	44%
Wind Speed	SSE 5 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Last update	14 Jul 05:15 AM MDT

More Information:

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

Extended Forecast for

Mammoth WY

Today
High: 90 °F
Sunny then
Chance
Showers
Tonight
Low: 54 °F
Chance
Showers then
Partly Cloudy
Tuesday
High: 81 °F
Sunny then
Showers
Tuesday Night
Low: 51 °F
Showers then
Chance
T-storms
Wednesday
High: 72 °F
Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 48 °F
Mostly Clear
Thursday
High: 84 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 51 °F
Mostly Clear
Friday
High: 86 °F
Sunny then
Slight Chance
T-storms

Detailed Forecast

Today

A 30 percent chance of showers and thunderstorms, mainly after 5pm. Increasing clouds, with a high near 90. Light and variable wind becoming west 6 to 11 mph in the afternoon.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 9pm. Mostly cloudy, with a low around 54. West southwest wind 5 to 9 mph becoming calm after midnight.

Tuesday

Showers and possibly a thunderstorm after noon. High near 81. Light and variable wind becoming west northwest 5 to 9 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Low around 51. North northeast wind around 7 mph. Chance of precipitation is 80%.

Wednesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 72. North wind 5 to 7 mph.

Wednesday Night

Mostly clear, with a low around 48. North northwest wind 5 to 7 mph becoming southeast after midnight.

Thursday

A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 84. Southeast wind 6 to 11 mph becoming west southwest in the afternoon.

Thursday Night

Mostly clear, with a low around 51.

Friday

A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 86.

Friday Night

Partly cloudy, with a low around 51.

Saturday

A slight chance of showers and thunderstorms. Sunny, with a high near 87.

Saturday Night

Partly cloudy, with a low around 52.

Sunday

Mostly sunny, with a high near 85.