Severe Weather Threats Across the Plains; Dangerous Heat and Wildfire Concerns for the West; Watching the Tropics

Severe thunderstorms are expected across the Central Plains accompanied by damaging wind gusts and large hail. In addition, heavy rainfall may lead to instances of flash flooding from the Plains and mid-Atlantic regions. The heavy rainfall threat continues across Florida and across the northern Gulf as we monitor a tropical disturbance tracking westward. Critical fire weather for the Great Basin. 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.

68°F

20°C

Humidity	49%
Wind Speed	NNE 8 MPH
Barometer	NA
Dewpoint	48°F (9°C)
Visibility	NA
Last update	15 Jul 11:15 AM MDT

More Information:

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

Extended Forecast for

Mammoth WY

This Afternoon
High: 73 °F⇓
T-storms
Tonight
Low: 47 °F
Showers then
Chance
Showers
Wednesday
High: 75 °F
Slight Chance
T-storms
Wednesday Night
Low: 49 °F
Mostly Clear
Thursday
High: 85 °F
Sunny
Thursday Night
Low: 51 °F
Mostly Clear
Friday
High: 86 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 52 °F
Partly Cloudy
Saturday
High: 87 °F
Sunny then
Slight Chance
T-storms

Detailed Forecast

This Afternoon

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. Temperature falling to around 65 by 5pm. Northwest wind 7 to 11 mph. 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 possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms, mainly between 8pm and 5am. Low around 47. Northwest wind 7 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday

A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 9am. Mostly cloudy, then gradually becoming sunny, with a high near 75. Northwest wind 5 to 7 mph. Chance of precipitation is 20%.

Wednesday Night

Mostly clear, with a low around 49. Northwest wind 5 to 7 mph becoming southeast after midnight.

Thursday

Sunny, with a high near 85. South southeast wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 24 mph.

Thursday Night

Mostly clear, with a low around 51. West wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

Friday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 86. Light and variable wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

Friday Night

Partly cloudy, with a low around 52.

Saturday

A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 87.

Saturday Night

Partly cloudy, with a low around 51.

Sunday

A slight chance of showers and thunderstorms. Sunny, with a high near 84.

Sunday Night

Partly cloudy, with a low around 51.

Monday

A slight chance of showers and thunderstorms. Mostly sunny, with a high near 83.