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

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

26°F

-3°C

Humidity	84%
Wind Speed	NW 7 mph
Barometer	30.01 in (1017.1 mb)
Dewpoint	22°F (-6°C)
Visibility	10.00 mi
Wind Chill	18°F (-8°C)
Last update	11 Dec 4:54 am CST

More Information:

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

Extended Forecast for

Decatur Airport IL

Winter Weather Advisory December 11, 03:00pm until December 12, 06:00am

Click here for hazard details and duration

Winter Weather Advisory

Today
High: 29 °F
Cloudy then
Snow
Tonight
Low: 25 °F
Snow then
Chance Snow
Friday
High: 32 °F
Mostly Cloudy
Friday Night
Low: 13 °F
Mostly Cloudy
Saturday
High: 16 °F
Chance Snow
then Heavy
Snow
Saturday Night
Low: -8 °F
Decreasing
Clouds
Sunday
High: 5 °F
Cold
Sunday Night
Low: -5 °F
Mostly Clear
Monday
High: 26 °F
Sunny

Detailed Forecast

Today

Snow, mainly after 3pm. High near 29. West northwest wind 6 to 8 mph becoming south southeast in the afternoon. Chance of precipitation is 90%. Total daytime snow accumulation of around an inch possible.

Tonight

Snow, mainly before midnight. Low around 25. South southeast wind 7 to 9 mph becoming northeast after midnight. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

Friday

Mostly cloudy, with a high near 32. North northeast wind 8 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 16 mph.

Friday Night

Mostly cloudy, with a low around 13. Wind chill values between 2 and 7. West northwest wind around 11 mph, with gusts as high as 16 mph.

Saturday

Snow, mainly after noon. The snow could be heavy at times. High near 16. Northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New snow accumulation of 3 to 5 inches possible.

Saturday Night

Mostly cloudy, then gradually becoming mostly clear, with a low around -8. Northwest wind around 11 mph, with gusts as high as 17 mph.

Sunday

Sunny and cold, with a high near 5. Northwest wind 6 to 11 mph, with gusts as high as 16 mph.

Sunday Night

Mostly clear, with a low around -5.

Monday

Sunny, with a high near 26.

Monday Night

Partly cloudy, with a low around 16.

Tuesday

Mostly sunny, with a high near 36.