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

Hazardous Weather Outlook

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast and Breezy

33°F

1°C

Humidity	78%
Wind Speed	NW 21 G 31 mph
Barometer	29.74 in (1007.7 mb)
Dewpoint	27°F (-3°C)
Visibility	10.00 mi
Wind Chill	21°F (-6°C)
Last update	10 Dec 12:54 pm CST

More Information:

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

Extended Forecast for

Decatur Airport IL

This Afternoon
High: 40 °F
Slight Chance
Snow and
Breezy
Tonight
Low: 21 °F
Cloudy
Thursday
High: 29 °F
Partly Sunny
then Chance
Snow
Thursday Night
Low: 24 °F
Snow then
Chance Snow
Friday
High: 32 °F
Mostly Cloudy
Friday Night
Low: 10 °F
Mostly Cloudy
Saturday
High: 18 °F
Chance Snow
Saturday Night
Low: -3 °F
Partly Cloudy
Sunday
High: 10 °F
Cold

Detailed Forecast

This Afternoon

A 20 percent chance of snow before 2pm. Cloudy, with a high near 40. Breezy, with a northwest wind 16 to 21 mph, with gusts as high as 36 mph.

Tonight

Cloudy, with a low around 21. Northwest wind 8 to 14 mph, with gusts as high as 20 mph.

Thursday

A 30 percent chance of snow after 3pm. Mostly cloudy, with a high near 29. Northwest wind 7 to 9 mph becoming south in the afternoon.

Thursday Night

Snow, mainly before midnight. Low around 24. South southeast wind 7 to 9 mph becoming east after midnight. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

Friday

Mostly cloudy, with a high near 32. East northeast wind 9 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 21 mph.

Friday Night

Mostly cloudy, with a low around 10. West northwest wind 9 to 11 mph, with gusts as high as 17 mph.

Saturday

A 40 percent chance of snow. Mostly cloudy, with a high near 18. Northwest wind around 9 mph.

Saturday Night

Partly cloudy, with a low around -3.

Sunday

Sunny and cold, with a high near 10.

Sunday Night

Mostly clear, with a low around 0.