Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

62°F

17°C

Humidity	70%
Wind Speed	NNE 7 MPH
Barometer	NA
Dewpoint	52°F (11°C)
Visibility	NA
Last update	13 Aug 01:15 PM MDT

More Information:

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

Extended Forecast for

2 Miles S Mammoth Hot Springs WY

This Afternoon
High: 68 °F
T-storms
Tonight
Low: 46 °F
Showers
Friday
High: 63 °F
Slight Chance
T-storms then
Showers
Likely
Friday Night
Low: 44 °F
Showers then
Slight Chance
Showers
Saturday
High: 65 °F
Slight Chance
T-storms then
Showers
Likely
Saturday Night
Low: 42 °F
Showers
Likely then
Partly Cloudy
Sunday
High: 68 °F
Mostly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 43 °F
Partly Cloudy
Monday
High: 69 °F
Partly Sunny
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. Patchy smoke before 4pm. High near 68. Southwest wind around 5 mph becoming light and variable. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Showers and thunderstorms before 1am, then a chance of showers. Patchy smoke before 7pm, then patchy smoke after 4am. Low around 46. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

Showers and thunderstorms likely, mainly before 4pm, then showers likely and possibly a thunderstorm after 5pm. Cloudy through mid morning, then becoming mostly sunny, with a high near 63. Southwest wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night

Showers and thunderstorms before 3am, then a slight chance of showers after 4am. Low around 44. Southwest wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A slight chance of showers before 9am, then a slight chance of showers and thunderstorms between 9am and noon, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 65. South wind 3 to 6 mph. Chance of precipitation is 70%.

Saturday Night

Showers likely and possibly a thunderstorm before midnight. Mostly cloudy, with a low around 42. South southeast wind 3 to 5 mph. Chance of precipitation is 60%.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

Sunday Night

Partly cloudy, with a low around 43.

Monday

A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 69.

Monday Night

Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.

Tuesday

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 66.

Tuesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 43.

Wednesday

A chance of showers and thunderstorms. Partly sunny, with a high near 66.