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

Special Weather Statement

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

30°F

-1°C

Humidity	79%
Wind Speed	W 9 mph
Barometer	30.00 in (1016.6 mb)
Dewpoint	24°F (-4°C)
Visibility	10.00 mi
Wind Chill	22°F (-6°C)
Last update	10 Dec 8:54 pm CST

More Information:

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

Extended Forecast for

Decatur IL

Tonight
Low: 23 °F
Slight Chance
Snow then
Cloudy
Thursday
High: 30 °F
Mostly Cloudy
then Heavy
Snow
Thursday Night
Low: 26 °F
Heavy Snow
then Snow
Likely
Friday
High: 31 °F
Mostly Cloudy
Friday Night
Low: 13 °F
Mostly Cloudy
Saturday
High: 16 °F
Snow Likely
Saturday Night
Low: -6 °F
Partly Cloudy
Sunday
High: 5 °F
Cold
Sunday Night
Low: -4 °F
Mostly Clear

Detailed Forecast

Tonight

A 20 percent chance of snow before 10pm. Cloudy, with a low around 23. Northwest wind 8 to 13 mph, with gusts as high as 22 mph.

Thursday

Snow likely, mainly after 5pm. The snow could be heavy at times. Mostly cloudy, with a high near 30. Northwest wind around 7 mph becoming south in the afternoon. Chance of precipitation is 60%. New snow accumulation of 1 to 2 inches possible.

Thursday Night

Snow. The snow could be heavy at times. Low around 26. South southeast wind around 7 mph becoming northeast after midnight. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

Friday

Mostly cloudy, with a high near 31. North northeast wind 7 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. West northwest wind around 10 mph, with gusts as high as 16 mph.

Saturday

Snow likely, mainly after noon. Cloudy, with a high near 16. Northwest wind around 9 mph. Chance of precipitation is 60%.

Saturday Night

Partly cloudy, with a low around -6. Northwest wind around 10 mph, with gusts as high as 16 mph.

Sunday

Sunny and cold, with a high near 5.

Sunday Night

Mostly clear, with a low around -4.