Your midday Illinois weather update We're tracking multiple flood warnings across Illinois this Tuesday as another round of showers and storms moves through the state. With 84 active weather alerts, including widespread flood warnings, it's crucial to stay weather-aware throughout the day and into tonight. Starting with your Tuesday timeline - temperatures peaked near 62 degrees around 5 P.M., but we'll see a steady drop through the evening hours, settling near 47 degrees by Wednesday morning.