The general inland fishing season in Wisconsin for 2025 opens statewide on Saturday, May 3, 2025, at 5 a.m. This is the traditional opening day for Wisconsin fishing. Specific species and zones may have slightly different season start dates, but May 3 marks the start for general inland fishing including largemouth bass, northern pike, walleye, and most others. The open season typically runs until March 1, 2026. For trout fishing, the general inland trout season also opens on May 3, 2025, and runs until October 15, 2025. There are some exceptions for early catch-and-release trout season which starts earlier in January, and other species like musky and smallmouth bass in certain zones that have slightly different dates. But for most anglers, the key opening day to remember in 2025 is Saturday, May 3.