Cicadas Illinois 2024 Schedule Map. 2024 is a big year for periodical cicadas in illinois, where broods xiii and xix will be emerging throughout much of the state at the same time. There's been plenty of buzz about cicadas for months, and.

The two broods will begin emerging as early as may, dependent on soil temperature. The dual explosion of cicadas, which hasn’t been seen for centuries, will hit much of the state, but in one portion,.