Chicago, Illinois – Slick roads and pooling water could disrupt travel across Illinois by Wednesday morning as multiple rounds of rain begin impacting interstates and local roads during peak commute hours.
According to the National Weather Service Climate Prediction Center, Illinois is in a high-confidence zone for above-average precipitation from Wednesday through Saturday, with totals projected to run 30 to 60 percent higher than normal. A strong warm signal is also in place, with a 70 to 80 percent probability of above-normal temperatures across the Midwest during this same period.
Chicago, Springfield, and Peoria are expected to see repeated waves of rainfall, raising the risk of standing water on major corridors including I-55, I-90, and I-74. In northern Illinois, including Rockford and surrounding suburbs, heavier bursts could drop visibility below one mile at times. Central and southern communities such as Decatur and Bloomington may see water collect quickly in low-lying and flood-prone areas.
Drivers should reduce speeds on wet pavement, avoid water-covered roads, and plan for longer commute times. Clearing storm drains and ensuring sump pumps are working can help limit water issues at home.
This wet and warm pattern is expected to persist through Saturday night, with additional alerts likely as rainfall totals and timing become more precise.
