Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

80°F

27°C

Humidity	13%
Wind Speed	WNW 6 MPH
Barometer	NA
Dewpoint	25°F (-4°C)
Visibility	NA
Heat Index	78°F (26°C)
Last update	19 Aug 07:15 PM MDT

More Information:

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

Extended Forecast for

5 Miles ESE Mount Holmes WY

Tonight
Low: 44 °F
Mostly Clear
Thursday
High: 77 °F
Sunny
Thursday Night
Low: 47 °F
Partly Cloudy
Friday
High: 79 °F
Mostly Sunny
Friday Night
Low: 48 °F
Mostly Cloudy
Saturday
High: 73 °F
Slight Chance
Showers then
Showers
Likely
Saturday Night
Low: 44 °F
Chance
T-storms then
Mostly Cloudy
Sunday
High: 70 °F
Mostly Sunny
then Chance
T-storms and
Breezy
Sunday Night
Low: 42 °F
Slight Chance
T-storms then
Partly Cloudy

Detailed Forecast

Tonight

Mostly clear, with a low around 44. West wind 5 to 8 mph becoming calm in the evening.

Thursday

Sunny, with a high near 77. Light and variable wind becoming west southwest 5 to 10 mph in the morning.

Thursday Night

Partly cloudy, with a low around 47. West wind 5 to 8 mph becoming calm in the evening.

Friday

Mostly sunny, with a high near 79. Light and variable wind becoming west 5 to 7 mph in the afternoon.

Friday Night

Mostly cloudy, with a low around 48. North northwest wind around 5 mph becoming light and variable after midnight.

Saturday

A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73. Southeast wind 5 to 10 mph becoming south southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 60%.

Saturday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 44. South wind around 7 mph.

Sunday

A 50 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70. Breezy.

Sunday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 42.

Monday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70.

Monday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 42.

Tuesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 71.