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.

Partly Cloudy

34°F

1°C

Humidity	87%
Wind Speed	S 8 mph
Barometer	29.64 in
Dewpoint	30°F (-1°C)
Visibility	10.00 mi
Wind Chill	27°F (-3°C)
Last update	9 Dec 4:35 am CST

More Information:

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

Extended Forecast for

Gettysburg SD

Winter Weather Advisory December 9, 06:00am until December 9, 12:00pm

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

Click here for hazard details and duration

Winter Weather Advisory

High Wind Warning

Overnight
Low: 25 °F
Slight Chance
Freezing Rain
Tuesday
High: 44 °F
Rain/Freezing
Rain and
Windy
Tuesday Night
Low: 14 °F
Partly Cloudy
and Windy
Wednesday
High: 22 °F
Partly Sunny
and Blustery
then Mostly
Cloudy
Wednesday Night
Low: 15 °F
Chance Snow
Thursday
High: 30 °F
Chance Wintry
Mix
Thursday Night
Low: -1 °F
Chance Snow
and Blustery
Friday
High: 6 °F
Slight Chance
Snow
Friday Night
Low: -4 °F
Chance Snow
then Snow
Likely

Detailed Forecast

Overnight

A slight chance of freezing rain after 5am. Mostly cloudy, with a low around 25. Southwest wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

Tuesday

Rain or freezing rain before noon, then a slight chance of rain between noon and 1pm. High near 44. Windy, with a southwest wind 13 to 23 mph becoming west northwest 26 to 36 mph. Winds could gust as high as 55 mph. Chance of precipitation is 80%. Little or no ice accumulation expected.

Tuesday Night

Partly cloudy, with a low around 14. Windy, with a northwest wind 31 to 36 mph decreasing to 22 to 27 mph after midnight. Winds could gust as high as 55 mph.

Wednesday

Increasing clouds, with a high near 22. Blustery, with a northwest wind 16 to 21 mph becoming east northeast 6 to 11 mph in the afternoon. Winds could gust as high as 32 mph.

Wednesday Night

A chance of snow. Cloudy, with a low around 15. East southeast wind 7 to 10 mph. Chance of precipitation is 50%.

Thursday

A chance of snow before 9am, then a chance of snow and freezing rain between 9am and 3pm, then a chance of snow after 3pm. Cloudy, with a high near 30. Southeast wind 10 to 14 mph becoming north northwest in the morning. Winds could gust as high as 23 mph. Chance of precipitation is 50%.

Thursday Night

A chance of snow. Cloudy, with a low around -1. Blustery, with a north northwest wind 14 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 50%.

Friday

A slight chance of snow. Mostly cloudy and cold, with a high near 6. North northwest wind 11 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.

Friday Night

Snow likely, mainly after midnight. Cloudy, with a low around -4. North wind 8 to 10 mph becoming east northeast after midnight. Chance of precipitation is 60%.

Saturday

A chance of snow, mainly before noon. Mostly cloudy and cold, with a high near 4. Chance of precipitation is 40%.

Saturday Night

Mostly cloudy, with a low around -10.

Sunday

Partly sunny, with a high near 17.

Sunday Night

Mostly cloudy, with a low around 7.

Monday

Mostly sunny, with a high near 26.