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Fishing Report

South Turtle Lake Fishing Report

Mercer, WI

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Modeled from live National Weather Service data as of Aug 30, 2026 at 2:17 AM CDT, plus solunar and sun/moon times computed in-house. This is a computed report, not an eyewitness catch report.

46.211279, -89.894700

Est. water temp

71.4°F

v1 estimate from air temperature — not a sensor reading

Max depth

23 ft

Deepest measurement on record

Max depth: Stachelek et al. (2021), LAGOS-US DEPTH v1.0, Environmental Data Initiative (CC BY 4.0)

Notes from anglers

Imported from GNIS. Nearest town: Mercer (Vilas County, WI).

Today’s bite

Largemouth Bass fishing report

Excellent · 89/100

Best window today: 1 PM (Excellent · 100/100)

See the full forecast →

Species on record

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Species detail

How to catch them at South Turtle Lake

Location

South Turtle Lake · 46.2113, -89.8947

Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors

Lake outline: WI DNR 24K Hydrography Lakes and Open Water

Nearby

Other lakes nearby

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FAQ

Common questions

What fish are in South Turtle Lake?

State surveys have confirmed Largemouth Bass, Muskellunge, Northern Pike, Smallmouth Bass, and Walleye in South Turtle Lake.

When's the best time to fish South Turtle Lake?

Black Crappie feed most actively at Dawn and Dusk, when activity runs about 16% above the daily average across all four light windows. Check today's bite forecast for South Turtle Lake to see the best window for current conditions.

Where is South Turtle Lake?

South Turtle Lake is near Mercer, WI, at 46.2113, -89.8947.

Plan your trip to South Turtle Lake

Get the hour-by-hour bite forecast and the best times to fish South Turtle Lake, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.