Dangerous Heat Wave Continues; Areas of Severe Thunderstorms Today

Dangerous, record-breaking heat will continue across most of the central and eastern U.S through Friday then focusing on the eastern U.S. through the Independence Day weekend. Peak heat indices of up to 115 degrees are possible. Strong to severe thunderstorms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians today. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

71°F

22°C

Humidity	31%
Wind Speed	NW 10 MPH
Barometer	NA
Dewpoint	38°F (3°C)
Visibility	NA
Last update	02 Jul 04:15 PM MDT

More Information:

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

Extended Forecast for

18 Miles SE Big Sky MT

This Afternoon
High: 67 °F
Scattered
T-storms
Tonight
Low: 42 °F
Scattered
T-storms then
Mostly Clear
Friday
High: 69 °F
Sunny then
Scattered
T-storms
Friday Night
Low: 45 °F
Scattered
Showers then
Mostly Clear
Independence Day
High: 73 °F
Sunny
Saturday Night
Low: 50 °F
Mostly Clear
Sunday
High: 77 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 53 °F
Slight Chance
T-storms then
Partly Cloudy
Monday
High: 78 °F
Mostly Sunny
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

Scattered showers and thunderstorms. Partly sunny, with a high near 67. Southwest wind around 14 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Tonight

Scattered showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 42. West southwest wind 5 to 11 mph becoming southeast after midnight. Chance of precipitation is 30%.

Friday

Scattered showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 69. Southeast wind 5 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 30%.

Friday Night

Scattered showers and thunderstorms, mainly before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 45. West southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 40%.

Independence Day

Sunny, with a high near 73. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

Saturday Night

Mostly clear, with a low around 50. Southwest wind 5 to 9 mph becoming light south after midnight. Winds could gust as high as 21 mph.

Sunday

A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 77. Light and variable wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 21 mph.

Sunday Night

A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 53.

Monday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 78.

Monday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53.

Tuesday

A chance of showers and thunderstorms. Partly sunny, with a high near 75.

Tuesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.

Wednesday

A slight chance of showers and thunderstorms. Sunny, with a high near 76.