Illinois Trout Stocking 2025. On saturday, october 21, 2023, anglers will line the shorelines of nearly 60 ponds, lakes and streams throughout illinois, anxiously watching the clock. The 2023 illinois fall trout season will open saturday, oct.

21, at 59 ponds, lakes, and streams throughout the state, and the illinois department of natural. During the season, the daily catch limit is 5 trout per person,.