Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Hazardous Weather Conditions

Current conditions at

ONIDAMUNC (K98D)

Lat: 44.7°NLon: 100.1°WElev: 1874ft.

Overcast

18°F

-8°C

Humidity	86%
Wind Speed	E 10 mph
Barometer	30.03 in
Dewpoint	14°F (-10°C)
Visibility	10.00 mi
Wind Chill	6°F (-14°C)
Last update	10 Dec 6:15 pm CST

More Information:

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

Extended Forecast for

Tolstoy SD

Winter Weather Advisory December 11, 12:00am until December 11, 06:00pm

Click here for hazard details and duration

Winter Weather Advisory

Tonight
Low: 13 °F⇑
Chance Snow
then Chance
Wintry Mix
Thursday
High: 28 °F
Wintry Mix
then Chance
Wintry Mix
Thursday Night
Low: 2 °F
Chance Wintry
Mix then
Slight Chance
Snow and
Blustery
Friday
High: 11 °F
Mostly Cloudy
and Blustery
then Mostly
Cloudy
Friday Night
Low: -4 °F
Slight Chance
Snow then
Snow Likely
Saturday
High: 3 °F
Chance Snow
then Mostly
Sunny
Saturday Night
Low: -16 °F
Partly Cloudy
Sunday
High: 20 °F
Mostly Sunny
Sunday Night
Low: 10 °F
Partly Cloudy

Detailed Forecast

Tonight

A chance of snow before 3am, then a chance of snow and freezing rain between 3am and 5am, then a chance of freezing rain and sleet after 5am. Cloudy, with a temperature rising to around 17 by 4am. Light east southeast wind becoming southeast 8 to 13 mph in the evening. Chance of precipitation is 50%.

Thursday

Snow and freezing rain, possibly mixed with sleet before 4pm, then a slight chance of snow between 4pm and 5pm. High near 28. South southeast wind 10 to 13 mph becoming north northwest in the afternoon. Chance of precipitation is 80%. New ice accumulation of around a 0.1 of an inch possible. Little or no snow and sleet accumulation expected.

Thursday Night

A chance of snow and freezing rain before 10pm, then a slight chance of snow between 10pm and 3am. Cloudy, with a low around 2. Blustery, with a northwest wind 11 to 16 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 30%.

Friday

Mostly cloudy, with a high near 11. Wind chill values as low as -19. Blustery, with a north northwest wind 15 to 22 mph, with gusts as high as 31 mph.

Friday Night

Snow likely, mainly after midnight. Cloudy, with a low around -4. North northwest wind 10 to 14 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

Saturday

A chance of snow before noon. Partly sunny and cold, with a high near 3. North wind 9 to 13 mph. Chance of precipitation is 50%.

Saturday Night

Partly cloudy, with a low around -16. North wind 7 to 11 mph becoming south southeast in the evening.

Sunday

Mostly sunny, with a high near 20. South southeast wind 13 to 18 mph, with gusts as high as 26 mph.

Sunday Night

Partly cloudy, with a low around 10. South southeast wind 11 to 14 mph becoming west after midnight. Winds could gust as high as 22 mph.

Monday

Mostly sunny, with a high near 33.

Monday Night

Partly cloudy, with a low around 19.