Thunder River, Wisconsin: Fishing Spots and Seasons

• Overview

  In Wisconsin, Thunder River falls inside Marinette County. It lies 827 feet above sea level. By elevation it sits in the lower part of our Wisconsin listings. Supplies mean a trip to Peshtigo, 26 miles off. Gillett follows at 27 miles, then Oconto Falls at 27 miles. The nearest edge is a long way off, so local rules apply throughout.

• Where to Fish on Thunder River

  No depth figure appears in our records, so the bank has to tell you. Undercut banks hold fish that the middle of the river never will. The outside of each bend cuts deepest and holds the better fish. County-wide records name brown trout, rainbow trout, largemouth bass, bluegill and yellow perch. The list covers the county rather than this water alone, so treat it as a guide. Thunder River gives up more to patience than to distance.

• Seasonal Patterns

  Temperature averages peak at 68°F in July and bottom out at 12°F in January. Spring and autumn carry the fishing; summer and winter test it. The quiet pools cap over in winter, the riffles never quite do, and mid April clears the lot. On the long-run averages the water opens up around mid April and starts locking again about early December. Spring is short and heavy here; autumn is longer and steadier. Anyone fishing Thunder River regularly works to that calendar.

• Tackle & Baits

  Nothing we hold confirms whether access is permitted. There is no mapped parking or launch nearby, which keeps numbers down. Largemouth respond to soft plastics tight to cover; go weedless where the growth is heavy. Where a permit is needed, the nearest town usually sells it. Close seasons apply to some species and not others. Little Perch Lake, 1.4 miles away, makes the obvious fallback. What applies at Thunder River may have changed since it was mapped.