Strong Storms and Heavy Rainfall Threats; Dangerous Heat for Southern Plains into the Southwest

Thunderstorms, some severe, will impact areas of the Plains into the Midwest today. Rainfall can be locally heavy as well from these storms with isolated instances of flash flooding. Monsoonal flow will enhance rainfall across the Four Corners into the central Rockies today. Meanwhile, summer heat continues for the southern Plains, Southwest into southern California. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

78°F

26°C

Humidity	32%
Wind Speed	ESE 2 MPH
Barometer	NA
Dewpoint	45°F (7°C)
Visibility	NA
Heat Index	78°F (26°C)
Last update	25 Aug 12:15 PM MDT

More Information:

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

Extended Forecast for

Mammoth WY

This Afternoon
High: 81 °F
Showers
Likely
Tonight
Low: 53 °F
Chance
Showers then
Mostly Cloudy
Wednesday
High: 83 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 52 °F
Slight Chance
T-storms then
Mostly Cloudy
Thursday
High: 84 °F
Mostly Sunny
then Chance
T-storms
Thursday Night
Low: 53 °F
Chance
Showers then
Mostly Cloudy
Friday
High: 80 °F
Partly Sunny
then Chance
T-storms
Friday Night
Low: 53 °F
Chance
Showers
Saturday
High: 73 °F
Chance
Showers then
Chance
T-storms

Detailed Forecast

This Afternoon

A slight chance of showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 5pm, then a chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 81. North wind 5 to 10 mph becoming southwest. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Mostly cloudy, with a low around 53. East southeast wind 5 to 8 mph becoming west in the evening. Chance of precipitation is 30%.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. Light and variable wind becoming northwest 5 to 10 mph in the afternoon.

Wednesday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, with a low around 52. West wind 5 to 14 mph becoming southeast after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Thursday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 84. Light and variable wind becoming southwest 5 to 8 mph in the afternoon.

Thursday Night

A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. West southwest wind 6 to 8 mph becoming south southeast in the evening.

Friday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 80. South wind 6 to 11 mph, with gusts as high as 25 mph.

Friday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.

Saturday

A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 73. Chance of precipitation is 40%.

Saturday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 47. Chance of precipitation is 20%.

Sunday

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

Sunday Night

Mostly clear, with a low around 44.