Dangerous, Record-Breaking Heat to Continue in the Central and Eastern U.S.; Severe Thunderstorms in the Upper Midwest; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will continue across most of the central and eastern U.S this week. Heat indices will exceed 100 degrees. Severe storms will be possible from the northern Plains into the Midwest and Great Lakes regions, as well as across the southern Appalachians Thursday, with the primary threat large to very large hail. Critical fire weather to continue in the Four Corners Region Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

63°F

17°C

Humidity	36%
Wind Speed	SSE 8 MPH
Barometer	NA
Dewpoint	36°F (2°C)
Visibility	NA
Last update	01 Jul 08:15 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

Tonight
Low: 42 °F
Chance
Showers then
Partly Cloudy
Thursday
High: 66 °F
Increasing
Clouds
Thursday Night
Low: 44 °F
Slight Chance
T-storms then
Mostly Clear
Friday
High: 67 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 44 °F
Slight Chance
T-storms then
Mostly Clear
Independence Day
High: 72 °F
Sunny
Saturday Night
Low: 49 °F
Mostly Clear
Sunday
High: 76 °F
Sunny
Sunday Night
Low: 53 °F
Partly Cloudy

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 42. East southeast wind 5 to 7 mph becoming light and variable.

Thursday

Increasing clouds, with a high near 66. Southeast wind 5 to 14 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

Thursday Night

A 10 percent chance of showers and thunderstorms, mainly between 11pm and midnight. Partly cloudy, with a low around 44. West southwest wind 5 to 10 mph becoming light and variable. Winds could gust as high as 22 mph.

Friday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 67. South wind 5 to 11 mph becoming west southwest in the afternoon. Winds could gust as high as 23 mph.

Friday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 44. West southwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 21 mph.

Independence Day

Sunny, with a high near 72. Light south wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 24 mph.

Saturday Night

Mostly clear, with a low around 49. South southwest wind 6 to 9 mph.

Sunday

Sunny, with a high near 76.

Sunday Night

Partly cloudy, with a low around 53.

Monday

A 10 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 79.

Monday Night

A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 54.