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.

66°F

19°C

Humidity	41%
Wind Speed	SW 3 MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Last update	14 Jul 01:15 AM MDT

More Information:

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

Extended Forecast for

3 Miles SSW Mammoth Hot Springs WY

Overnight
Low: 48 °F
Slight Chance
T-storms
Monday
High: 83 °F
Sunny then
Scattered
T-storms
Monday Night
Low: 47 °F
Scattered
Showers then
Partly Cloudy
Tuesday
High: 72 °F
Slight Chance
Showers then
Showers
Tuesday Night
Low: 43 °F
Showers
Likely then
Chance
Showers
Wednesday
High: 66 °F
Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 41 °F
Mostly Clear
Thursday
High: 74 °F
Sunny then
Slight Chance
T-storms
Thursday Night
Low: 44 °F
Mostly Clear

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms before 3am. Mostly clear, with a low around 48. West southwest wind 3 to 5 mph.

Monday

Scattered showers and thunderstorms, mainly after 3pm. Increasing clouds, with a high near 83. Light and variable wind becoming west southwest 6 to 11 mph in the morning. Chance of precipitation is 30%.

Monday Night

Scattered showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 47. West southwest wind 5 to 10 mph becoming light west after midnight. Chance of precipitation is 30%.

Tuesday

A slight chance of showers, then showers and possibly a thunderstorm after noon. High near 72. Light and variable wind becoming west northwest 6 to 11 mph in the morning. Winds could gust as high as 21 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 43. North wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%.

Wednesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 66. Northwest wind 6 to 9 mph.

Wednesday Night

Mostly clear, with a low around 41. North northwest wind 6 to 8 mph becoming east after midnight.

Thursday

A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 74.

Thursday Night

Mostly clear, with a low around 44.

Friday

A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 76.

Friday Night

Partly cloudy, with a low around 45.