CAST&SCAN

Waters · United States

Lake Winnebago fishing report

Updated Wednesday, October 21, 2026 · refreshed automatically through the day

Wisconsin's largest inland lake is broad and shallow, with walleye on its reefs and a February spearing season for lake sturgeon. When it freezes, thousands of shanties appear on its ice.

Today's report: excellent (91/100)

Walleye is the most promising species on Lake Winnebago today. Water temperature is around 50°F (10.2°C) and barometric pressure is stable.

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Best time to fish today

  • 4:00 PM–6:00 PM local time — score 85/100
  • 9:00 PM–11:00 PM local time — score 93/100
  • 2:00 AM–4:00 AM local time — score 85/100

3-day outlook by species

SpeciesWednesday, Oct 21Thursday, Oct 22Friday, Oct 23
Walleye91 — excellent87 — excellent97 — excellent
Yellow Perch82 — excellent80 — excellent96 — excellent
Channel Catfish27 — poor20 — very poor31 — poor

Why this score

Cast & Scan uses a deterministic, published scoring model — no black box. The strongest influences on today's Lake Winnebago rating:

  • water temperature: helping (+1)
  • pressure trend: helping (+1)
  • light: helping (+1)
  • solunar period: helping (+1)
  • season: helping (+1)
  • precipitation: helping (+0.9)

Forecast computed Wed, 21 Oct 2026 16:57:52 GMT · data: Open-Meteo · refreshed automatically through the day · see our published accuracy

Winter fishing on Lake Winnebago

Winnebago is one of the Midwest's biggest ice-fishing lakes, with walleye and perch through the ice. In February the lake hosts the sturgeon spearing season, with its own licences and rules. The lake is shallow, so it freezes widely, but pressure cracks form along the reefs and near the river mouths. Local fishing clubs set up and mark plowed roads and bridges over cracks, so check their ice reports before driving out.

Seasons, closed sections and permits are set by the state and change. Check the current regulations before a winter trip, and never trust shelf ice or a forecast for your safety.

Wondering how this stacks up against the apps you already know? Cast & Scan vs Fishbrain vs BassForecast — an honest comparison, including where they beat us.

Read before you go

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