Apr 6, 2015 Illinois trout season opened just before Easter weekend, great spring weather! Illinois trout season opened just before Easter weekend, great spring weather! Illinois trout season opened just before Easter weekend, great spring weather! Meandering brooks and small streams may secret treasures for the trout fisherman and landowner. Water temperature being suitable, even the smallest of farmland streams in Northwest Illinois hold opportunity for angling adventure. Imagine the incredible feeling of taking rod and net towards your own trout stream in Northwest Illinois, and the value of making living legacies through your time outdoors. See your regional LandGuy to explore trout streams in the Northwest or to discover the path to your own angling adventures. LT Taylor