Northern Illinois 17 Year Cicadas 2024. Brood xiii, or the northern illinois brood, will emerge in the northern half of the state. This is the first time this.

Cicadas emerging in northfield, illinois, captured on may 19, 2024. A rare and likely massive emergence of two different broods of cicadas is expected in 2024 and while illinois is in a unique position to see it all unfold, where can you expect the most?