Chicago, Illinois – Drivers across Illinois and Indiana could face flooded roadways and strong crosswinds during the April 1–7 period as repeated storm systems move through the region, increasing the risk of delays along I-90, I-94, I-65, and I-70.
According to the National Weather Service Climate Prediction Center, this region sits in one of the most active precipitation zones in the country, with up to an 80% probability of above-normal rainfall across parts of Illinois, Indiana, and the broader Great Lakes. A slight risk of high winds also extends across both states, adding to potential travel concerns.
Rainfall totals between 2 and 4 inches are possible, particularly in cities like Chicago, Rockford, Indianapolis, and Gary. Low-lying roads, underpasses, and flood-prone areas could see rapid water accumulation, while rivers including the Wabash and Kankakee may rise during repeated rounds of rain. IDOT and INDOT may issue alerts if standing water impacts major highways.
Wind gusts between 40 and 50 mph are possible at times, especially across open stretches of highway and along Lake Michigan. These gusts could create hazardous conditions for high-profile vehicles and may lead to isolated power outages.
Temperatures are expected to run above normal, keeping precipitation primarily rain and supporting an active storm pattern.
This unsettled pattern will persist through April 1–7, with additional advisories or localized flood warnings possible as conditions evolve.
