Storms and Heavy Rainfall in the Plains and Southern Appalachians; Hazardous Heat in the South and Southeast

Severe thunderstorms with heavy rainfall will be possible across the southern Appalachians through this evening. Thunderstorms are also expected from the northern/central Plains into portions of the Midwest through Tuesday, and severe storms may produce large hail and damaging wind gusts. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Hazardous Weather Conditions

Special Weather Statement

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

66°F

19°C

Humidity	44%
Wind Speed	NW 19 MPH
Barometer	NA
Dewpoint	43°F (6°C)
Visibility	NA
Last update	17 Aug 03:15 PM MDT

More Information:

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

Extended Forecast for

8 Miles W Mammoth Hot Springs WY

This Afternoon
High: 60 °F
Showers
Likely and
Breezy
Tonight
Low: 46 °F
Showers
Likely then
Isolated
Showers
Tuesday
High: 61 °F
Isolated
Showers then
Scattered
T-storms
Tuesday Night
Low: 43 °F
Scattered
Showers then
Partly Cloudy
Wednesday
High: 63 °F
Sunny then
Sunny and
Breezy
Wednesday Night
Low: 46 °F
Mostly Clear
Thursday
High: 67 °F
Sunny
Thursday Night
Low: 50 °F
Partly Cloudy
Friday
High: 68 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

Scattered showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly cloudy, with a high near 60. Breezy, with a southwest wind 11 to 15 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

Tonight

Showers and thunderstorms likely before midnight, then isolated showers between midnight and 1am. Mostly cloudy, with a low around 46. Southwest wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.

Tuesday

Isolated showers, then scattered showers and thunderstorms after noon. Partly sunny, with a high near 61. Southwest wind 7 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night

Scattered showers and thunderstorms before 10pm, then isolated showers between 10pm and 11pm. Partly cloudy, with a low around 43. Northwest wind 6 to 14 mph becoming east in the evening. Winds could gust as high as 21 mph. Chance of precipitation is 40%.

Wednesday

Sunny, with a high near 63. Breezy, with a south wind 6 to 15 mph becoming west in the afternoon. Winds could gust as high as 24 mph.

Wednesday Night

Mostly clear, with a low around 46. West wind 5 to 14 mph becoming south after midnight. Winds could gust as high as 24 mph.

Thursday

Sunny, with a high near 67. South wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 23 mph.

Thursday Night

Partly cloudy, with a low around 50.

Friday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 68.

Friday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 52. Chance of precipitation is 30%.

Saturday

A chance of showers and thunderstorms. Mostly cloudy, with a high near 63. Breezy.

Saturday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 48.

Sunday

A chance of showers and thunderstorms. Mostly sunny, with a high near 61. Breezy.