Flash Flood — Du Page, Illinois

2025-08-18 · near Downers Grove, Du Page, Illinois

Event narrative

A report was received via mPing of street flooding north of 55th St west of Fairview Ave in Downers Grove.

Wider weather episode

During the afternoon and evening of the 18th, a few rounds of thunderstorms brought torrential rainfall to much of northern Illinois resulting in flash flooding. One particularly strong storm also produced damaging winds in DeKalb County. Initial reports estimate $8.8 million in flood damages around northern and northeast Illinois, and around $2.5 million in the city of Chicago alone.

View location on OpenStreetMap → (41.7876, -88.0013)

Source: NOAA Storm Events Database, event_id 1288628. Narrative written by the NWS forecast office that issued the report.