Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

79°F

26°C

Humidity	19%
Wind Speed	SSE 1 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Heat Index	78°F (26°C)
Last update	04 Jul 01:15 PM MDT

More Information:

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

Extended Forecast for

17 Miles SE Big Sky MT

Independence Day
High: 69 °F
Sunny
Tonight
Low: 50 °F
Mostly Clear
Sunday
High: 72 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 51 °F
Mostly Cloudy
Monday
High: 70 °F
Mostly Sunny
then Chance
T-storms
Monday Night
Low: 51 °F
Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 69 °F
Slight Chance
T-storms then
Chance
T-storms
Tuesday Night
Low: 50 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 71 °F
Mostly Sunny
then Chance
T-storms

Detailed Forecast

Independence Day

Sunny, with a high near 69. Southwest wind around 11 mph, with gusts as high as 23 mph.

Tonight

Mostly clear, with a low around 50. South southwest wind 7 to 10 mph, with gusts as high as 22 mph.

Sunday

A 10 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 72. Southwest wind 6 to 11 mph becoming west northwest in the afternoon. Winds could gust as high as 24 mph.

Sunday Night

Mostly cloudy, with a low around 51. West wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph.

Monday

A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. Calm wind becoming south southeast 5 to 8 mph in the morning. Winds could gust as high as 20 mph.

Monday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 51. Southwest wind 5 to 7 mph becoming light and variable. Chance of precipitation is 50%.

Tuesday

A 40 percent chance of showers and thunderstorms, mainly after noon. Mostly sunny, with a high near 69. South southwest wind 5 to 8 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

Tuesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 50.

Wednesday

A 40 percent chance of showers and thunderstorms after noon. Sunny, with a high near 71.

Wednesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 49.

Thursday

Sunny, with a high near 69.

Thursday Night

Mostly clear, with a low around 48.

Friday

Sunny, with a high near 71.