Prolonged Atmospheric River in the Northwest; Snow in the North-Central US

A prolonged atmospheric river will bring heavy rainfall which may lead to widespread urban and river flooding, heavy mountain snow, along with gusty winds to the Pacific Northwest into the northern Rockies through much of the week. A clipper will bring a period of snow across the upper Midwest and the Great Lakes into Tuesday, before a stronger system bring more wintry impacts. Read More >

Hazardous Weather Conditions

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

Lat: 43.26°NLon: 100.86°WElev: 2724ft.

Mostly Cloudy

41°F

5°C

Humidity	57%
Wind Speed	Vrbl 7 mph
Barometer	29.59 in
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Wind Chill	36°F (2°C)
Last update	9 Dec 6:15 am CST

More Information:

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

Extended Forecast for

Long Valley SD

High Wind Warning December 9, 08:00am until December 10, 02:00am

Click here for hazard details and duration

High Wind Warning

Today
High: 57 °F
Slight Chance
Rain and Very
Windy
Tonight
Low: 28 °F
Partly Cloudy
and Windy
Wednesday
High: 40 °F
Chance Snow
Wednesday Night
Low: 34 °F⇑
Chance
Rain/Snow
then Mostly
Cloudy
Thursday
High: 50 °F
Slight Chance
Rain then
Mostly Cloudy
and Breezy
Thursday Night
Low: 11 °F
Blustery.
Chance
Rain/Snow
then Chance
Snow
Friday
High: 19 °F
Chance Snow
and Blustery
Friday Night
Low: 6 °F
Chance Snow
Saturday
High: 17 °F
Slight Chance
Snow then
Partly Sunny

Detailed Forecast

Today

A 20 percent chance of rain after 8am. Partly sunny, with a high near 57. Very windy, with a southwest wind 26 to 31 mph becoming west 38 to 43 mph in the afternoon. Winds could gust as high as 60 mph.

Tonight

Partly cloudy, with a low around 28. Wind chill values as low as 18. Windy, with a northwest wind 34 to 39 mph decreasing to 25 to 30 mph after midnight. Winds could gust as high as 48 mph.

Wednesday

A 30 percent chance of snow after 11am. Mostly cloudy, with a high near 40. Wind chill values as low as 17. Northwest wind 10 to 15 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph.

Wednesday Night

A chance of rain and snow before 9pm, then a chance of rain between 9pm and 11pm. Mostly cloudy, with a temperature rising to around 38 by 3am. South wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 30%.

Thursday

A 20 percent chance of rain before 11am. Mostly cloudy, with a high near 50. Breezy, with a northwest wind 15 to 20 mph, with gusts as high as 28 mph.

Thursday Night

A chance of rain before 8pm, then a chance of rain and snow between 8pm and 10pm, then a chance of snow after 10pm. Cloudy, with a low around 11. Blustery, with a north wind 17 to 25 mph, with gusts as high as 33 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

Friday

A 50 percent chance of snow. Cloudy, with a high near 19. Blustery, with a north wind 11 to 21 mph becoming northeast in the afternoon. Winds could gust as high as 29 mph.

Friday Night

A chance of snow, mainly before 11pm. Cloudy, with a low around 6. East wind 13 to 15 mph, with gusts as high as 20 mph.

Saturday

A slight chance of snow before 11am. Mostly cloudy, with a high near 17.

Saturday Night

Mostly cloudy, with a low around 5.

Sunday

Mostly sunny, with a high near 41. Breezy.

Sunday Night

Partly cloudy, with a low around 23.

Monday

Mostly sunny, with a high near 44.