Northern Illinois 17 Year Cicadas 2024. Now the great dual periodical cicada emergence of 2024 — an event of a magnitude not seen since 1803 — has burst from below to join the earlier shows in the. This year (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.

Aug 7, 2024 / 08:35 am cdt. Where will cicadas be in 2024?