Ice accumulation won't be enough to cause issues to power lines or tree branches.
Freezing rain possibly mixed with sleet and wet snow early in the process will overspread most of the Chicago area tonight into early Wednesday morning, beginning in the westernmost sections later this afternoon.
"It's not the amount of freezing drizzle or the amount of freezing rain we get it's just with the falling temperature tomorrow things are going to freeze up", said Jill Taylor, 1310 NEWS meteorologist.
It's a cold but dry Saturday with 1-3 inches of snow possible Sunday.
More rain showers arrive late Thursday with the chance for some of us to see more freezing rain Thursday depending on the timing.
The Catfish Creek Conservation Authority (CCCA) says its warning is for low lying areas within the watershed, noting that creek levels are high and are expected to keep rising.
By the weekend, strong Canadian high pressure is anticipated to move over the region. 5-10 cm of drifting snow is likely through the day on gusty north winds.
A wintry mix of precipitation will hit Thursday into Friday. Sidewalks and parking lots could become slippery too.
TODAY: Mostly Cloudy High: 27 Wind: NE 10 miles per hour TONIGHT: Icy Mix.
Sat: High: 40 Low: 16 Mostly sunny to partly cloudy; breezy.