Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

MAMMOTH AT YELLOWSTONE NATIONAL PARK (YLAW4)

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

47°F

8°C

Humidity	50%
Wind Speed	W 3 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Last update	18 Jun 01:15 AM MDT

More Information:

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

Extended Forecast for

12 Miles WNW Gardiner MT

Overnight
Low: 35 °F
Clear
Thursday
High: 58 °F
Sunny then
Sunny and
Breezy
Thursday Night
Low: 37 °F
Mostly Clear
and Breezy
then Partly
Cloudy
Juneteenth
High: 63 °F
Mostly Sunny
Friday Night
Low: 46 °F
Mostly Cloudy
Saturday
High: 54 °F
Chance
Showers then
Showers
Saturday Night
Low: 41 °F
Showers then
Mostly Cloudy
Sunday
High: 55 °F
Mostly Sunny
then Chance
T-storms
Sunday Night
Low: 37 °F
Chance
T-storms then
Partly Cloudy

Detailed Forecast

Overnight

Clear, with a low around 35. Northwest wind 3 to 5 mph.

Thursday

Sunny, with a high near 58. Breezy, with a west wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 31 mph.

Thursday Night

Mostly clear, with a low around 37. Breezy, with a west northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 30 mph.

Juneteenth

Mostly sunny, with a high near 63. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

Friday Night

Mostly cloudy, with a low around 46. West wind 5 to 9 mph becoming south in the evening.

Saturday

A chance of showers before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 54. West wind around 8 mph. Chance of precipitation is 90%.

Saturday Night

Showers and possibly a thunderstorm before midnight. Low around 41. West southwest wind 5 to 7 mph. Chance of precipitation is 80%.

Sunday

A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 55.

Sunday Night

A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 37.

Monday

A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 56.

Monday Night

Mostly clear, with a low around 36.

Tuesday

Sunny, with a high near 62.