Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

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

Partly Cloudy

41°F

5°C

Humidity	93%
Wind Speed	N 13 mph
Barometer	29.69 in
Dewpoint	39°F (4°C)
Visibility	10.00 mi
Wind Chill	34°F (1°C)
Last update	11 Dec 1:15 pm CST

More Information:

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

Extended Forecast for

Long Valley SD

This Afternoon
High: 48 °F
Partly Sunny
and Breezy
Tonight
Low: 19 °F
Slight Chance
Rain and
Blustery then
Slight Chance
Snow
Friday
High: 25 °F
Chance Snow
Friday Night
Low: 7 °F
Snow Likely
Saturday
High: 13 °F⇓
Chance Snow
then Partly
Sunny
Saturday Night
Low: 2 °F⇑
Partly Cloudy
Sunday
High: 47 °F
Sunny and
Breezy
Sunday Night
Low: 29 °F
Mostly Clear
Monday
High: 51 °F
Sunny

Detailed Forecast

This Afternoon

Partly sunny, with a high near 48. Breezy, with a west wind 18 to 23 mph, with gusts as high as 38 mph.

Tonight

A slight chance of rain before midnight, then a slight chance of snow. Cloudy, with a low around 19. Wind chill values as low as 10. Blustery, with a northwest wind 18 to 20 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

Friday

A 40 percent chance of snow. Cloudy, with a high near 25. Wind chill values as low as 4. North wind 10 to 14 mph. New snow accumulation of less than one inch possible.

Friday Night

Snow likely. Cloudy, with a low around 7. Wind chill values as low as -6. East wind 8 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New snow accumulation of around an inch possible.

Saturday

A 50 percent chance of snow before 11am. Cloudy, then gradually becoming mostly sunny, with a temperature rising to near 13 by noon, then falling to around 6 during the remainder of the day. Northeast wind 7 to 16 mph, with gusts as high as 22 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Partly cloudy, with a temperature falling to near 2 by 9pm, then rising to around 17 during the remainder of the night. Southeast wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 26 mph.

Sunday

Sunny, with a high near 47. Breezy, with a south wind around 21 mph, with gusts as high as 31 mph.

Sunday Night

Mostly clear, with a low around 29. West wind 13 to 18 mph, with gusts as high as 26 mph.

Monday

Sunny, with a high near 51.

Monday Night

Partly cloudy, with a low around 33.

Tuesday

Mostly sunny, with a high near 57.

Tuesday Night

Mostly cloudy, with a low around 34.