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.

67°F

19°C

Humidity	32%
Wind Speed	SSW 5 MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Last update	04 Jul 10:15 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

Tonight
Low: 49 °F
Mostly Clear
Sunday
High: 78 °F
Sunny then
Slight Chance
T-storms and
Breezy
Sunday Night
Low: 51 °F
Decreasing
Clouds
Monday
High: 76 °F
Mostly Sunny
then Slight
Chance
T-storms
Monday Night
Low: 51 °F
Chance
T-storms then
Slight Chance
Showers
Tuesday
High: 74 °F
Sunny then
Chance
T-storms
Tuesday Night
Low: 50 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 76 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 49 °F
Slight Chance
T-storms then
Mostly Clear

Detailed Forecast

Tonight

Mostly clear, with a low around 49. Southeast wind 3 to 6 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 78. Breezy, with a light and variable wind becoming south southwest 10 to 15 mph in the morning. Winds could gust as high as 21 mph.

Sunday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around 51. West southwest wind 8 to 13 mph becoming light and variable after midnight.

Monday

A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. Calm wind becoming south 5 to 8 mph in the afternoon.

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 calm in the evening. Chance of precipitation is 50%.

Tuesday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 74. Calm wind becoming west 5 to 8 mph in the afternoon.

Tuesday Night

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

Wednesday

A 40 percent chance of showers and thunderstorms after noon. Sunny, with a high near 76.

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 75.

Thursday Night

Mostly clear, with a low around 48.