Locally Heavy Rainfall and Flash Flooding Possible Over the Midwest & Southwest; Critical Fire Weather Conditions in the Great Basin

Monsoon moisture will result in locally heavy showers and thunderstorms over the Southwest U.S. through Sunday. Heavy rainfall will also impact parts of the Midwest. Meanwhile, critical fire weather conditions are expected for much of the Great Basin. Tropical Storm Humberto will remain well offshore the Southeast U.S., but rip currents and heavy surf are expected from Florida to the Carolinas. Read More >

En Español

Current conditions at

MAMMOTH AT YELLOWSTONE NP (YLAW4)

Lat: 44.97722°NLon: 110.69528°WElev: 6127ft.

14°C

57°F

Humidity	34%
Wind Speed	S 4 G 5 MPH
Barometer	NA
Dewpoint	-2°C (29°F)
Visibility	NA
Last update	15 Sep 3:15 am MDT

More Information:

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

Extended Forecast for

Gardiner MT

Today

Increasing
Clouds
High: 28 °C
Tonight

Increasing
Clouds
Low: 11 °C
Monday

Mostly Sunny
then Mostly
Sunny and
Breezy
High: 26 °C
Monday
Night

Chance
Showers
Low: 9 °C
Tuesday

Showers
Likely
High: 16 °C
Tuesday
Night

Chance
Showers
Low: 4 °C
Wednesday

Sunny
High: 21 °C
Wednesday
Night

Mostly Clear
then Slight
Chance
Showers
Low: 6 °C
Thursday

Chance
Showers
High: 21 °C

Detailed Forecast

Today

Increasing clouds, with a high near 28. Southeast wind 10 to 18 km/h becoming southwest in the afternoon.

Tonight

Increasing clouds, with a low around 11. Southeast wind 11 to 16 km/h.

Monday

Cloudy through mid morning, then clearing, with a high near 26. Breezy, with a south wind 10 to 15 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 48 km/h.

Monday Night

A 40 percent chance of showers. Mostly cloudy, with a low around 9. South wind 16 to 21 km/h decreasing to 10 to 15 km/h in the evening. Winds could gust as high as 42 km/h.

Tuesday

A chance of showers before noon, then showers likely and possibly a thunderstorm between noon and 3pm, then showers likely after 3pm. Mostly cloudy, with a high near 16. Southwest wind 11 to 18 km/h. Chance of precipitation is 70%.

Tuesday Night

A 40 percent chance of showers, mainly before midnight. Partly cloudy, with a low around 4. South wind 10 to 16 km/h.

Wednesday

Sunny, with a high near 21. South wind 10 to 15 km/h increasing to 16 to 21 km/h in the afternoon. Winds could gust as high as 34 km/h.

Wednesday Night

A 20 percent chance of showers after midnight. Mostly clear, with a low around 6.

Thursday

A 30 percent chance of showers, mainly after noon. Mostly sunny, with a high near 21.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 6. Chance of precipitation is 40%.

Friday

A chance of showers. Mostly cloudy, with a high near 16.