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

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Fair

36°F

2°C

Humidity	87%
Wind Speed	W 12 mph
Barometer	29.86 in
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Wind Chill	28°F (-2°C)
Last update	8 Dec 9:15 pm CST

More Information:

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

Extended Forecast for

Lebanon SD

High Wind Warning December 9, 03:00pm until December 10, 03:00am

Click here for hazard details and duration

High Wind Warning

Tonight
Low: 25 °F
Mostly Cloudy
Tuesday
High: 44 °F
Breezy.
Rain/Freezing
Rain Likely
then Chance
Rain
Tuesday Night
Low: 14 °F
Mostly Cloudy
and Windy
Wednesday
High: 21 °F
Partly Sunny
and Blustery
then Mostly
Cloudy
Wednesday Night
Low: 12 °F
Chance Snow
Thursday
High: 26 °F
Chance Snow
Thursday Night
Low: -3 °F
Chance Snow
Friday
High: 5 °F
Cold
Friday Night
Low: -6 °F
Cloudy then
Chance Snow

Detailed Forecast

Tonight

Mostly cloudy, with a low around 25. West southwest wind 7 to 10 mph.

Tuesday

Rain or freezing rain likely before 1pm, then a slight chance of rain between 1pm and 2pm. Mostly cloudy, with a high near 44. Breezy, with a southwest wind 11 to 16 mph increasing to 23 to 28 mph in the afternoon. Winds could gust as high as 55 mph. Chance of precipitation is 60%. New ice accumulation of less than a 0.1 of an inch possible.

Tuesday Night

Mostly cloudy, with a low around 14. Windy, with a northwest wind 27 to 32 mph decreasing to 21 to 26 mph after midnight. Winds could gust as high as 55 mph.

Wednesday

Increasing clouds, with a high near 21. Blustery, with a north northwest wind 15 to 20 mph becoming north northwest 8 to 13 mph in the afternoon. Winds could gust as high as 30 mph.

Wednesday Night

A chance of snow. Cloudy, with a low around 12. East southeast wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

Thursday

A chance of snow. Mostly cloudy, with a high near 26. East southeast wind 13 to 17 mph becoming north northwest in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 40%.

Thursday Night

A chance of snow. Mostly cloudy, with a low around -3. North northwest wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 40%.

Friday

Mostly cloudy and cold, with a high near 5. North northwest wind 13 to 18 mph, with gusts as high as 28 mph.

Friday Night

A chance of snow after midnight. Cloudy, with a low around -6. North northwest wind 9 to 11 mph becoming east after midnight. Chance of precipitation is 30%.

Saturday

A chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 5. Chance of precipitation is 30%.

Saturday Night

Mostly cloudy, with a low around -6.

Sunday

Partly sunny, with a high near 17.

Sunday Night

Mostly cloudy, with a low around 6.

Monday

Mostly sunny, with a high near 24.