Grignon Lake in Oconto County: How and When to Fish It

• Overview

  Oconto County in Wisconsin is where Grignon Lake sits. The bank is 833 feet above sea level. It runs to roughly 33 acres — big enough to hold fish away from the bank, small enough to learn. The full circuit measures close to 0.9 miles on foot. It is low-lying compared with other Wisconsin water we list. Some 8.3 miles away sits Legend Lake, the nearest settlement. It is 40 miles to Green Bay, the nearest city. This one is safely inside the county line.

• Where to Fish on Grignon Lake

  Depth is not on record here, so the bank has to tell you. Read the surface for the wind lane, then fish the edge of it. A soft bed grows weed late into autumn, which keeps fish shallow. Reported across Oconto County: brown trout, largemouth bass, bluegill and yellow perch. The county figures include rivers and lakes alike. On Grignon Lake a short move beats a long cast.

• Seasonal Patterns

  Long-term averages put July at about 68°F and January near 13°F. Seasons are distinct, and each one fishes differently. Ice is part of the season here, ending near mid April. From about mid April to around early December, expect open water on the long-run figures. From the thaw to midsummer the fishing improves week by week. Grignon Lake fishes to that pattern most years.

• Tackle & Baits

  The rules here are undocumented as far as public sources go. No dam controls it, and the level follows the season. Public mapping records no formal access here, so plan for a walk and soft ground. A small crankbait along the drop and a worm in the thick stuff cover the bass. Local rules can differ across the county line, so check where you stand. Rules for boats are stricter than rules for the bank in many places. Wiscobee Lake at 1.7 miles is the sensible second choice. Nothing here settles the position at Grignon Lake for certain.