Chicago Weather Forecast for April 23, 2026: What to Expect Today and Full Details

Chicago residents can expect severe weather conditions on April 23, 2026, with the potential for thunderstorms, wind gusts up to 60 mph, and small hail overnight into Friday morning, according to the National Weather Service.

The storm system is expected to move into several counties between 2 and 4 a.m. Friday, bringing showers and possible thunderstorms, with rainfall totals between one-tenth and a quarter of an inch possible in affected areas.

Temperatures are expected to be in the low 70s Fahrenheit during the storm period, according to weather officials.

River levels across the state remain high, with recent flooding reported near the Fox River, where the crest occurred Wednesday into Thursday, and areas along the Elgin and South Elgin dams expected to crest Thursday into Friday.

Officials urged residents to remain cautious, particularly in low-lying areas near rivers, as water levels are expected to remain elevated into the weekend with little change until early next week.

This report is based on information from the National Weather Service and local weather forecasts for Chicago on April 23, 2026.