Flash Flood Warning: De Kalb, La Salle, Lee counties IL — 3-5 inches of rain
NWS Chicago issued a Flash Flood Warning for De Kalb, La Salle, and Lee counties, IL on Sept. 17, 2026, after 3–5 inches of rain had already fallen.
Dekalb county
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Silvis – Chicago, IL – Milwaukee, WI Wind Storm11/10/2020
Severe Thunderstorms and Strong Winds Severe thunderstorms produced severe wind gusts, some significant. There were pockets of extensive wind damage, and two EF-0 tornadoes occurred in DeKalb and Kane counties. Hail larger than quarter size (1″ in diameter) was observed in portions of Winnebago County. If you live in an area between Chicago, IL and…