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Fishing Report

Hart Lake Fishing Report

Iron River, WI

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Modeled from live National Weather Service data as of Aug 30, 2026 at 11:15 AM CDT, plus solunar and sun/moon times computed in-house. This is a computed report, not an eyewitness catch report.

46.518532, -91.361892

Est. water temp

77.2°F

v1 estimate from air temperature — not a sensor reading

Max depth

54 ft

Deepest measurement on record

Mean depth: 25 ft

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: Iron River (Bayfield County, WI).

Today’s bite

Largemouth Bass fishing report

Excellent · 85/100

Best window today: 2 PM (Excellent · 99/100)

See the full forecast →

Species on record

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Species detail

How to catch them at Hart Lake

Location

Hart Lake · 46.5185, -91.3619

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 Hart Lake?

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

When's the best time to fish Hart 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 Hart Lake to see the best window for current conditions.

Where is Hart Lake?

Hart Lake is near Iron River, WI, at 46.5185, -91.3619.

Plan your trip to Hart Lake

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