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Fishing Report

Diamond Lake Fishing Report

Boulder Junction, WI

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Modeled from live National Weather Service data as of Aug 30, 2026 at 5:06 AM CDT, plus solunar and sun/moon times computed in-house. This is a computed report, not an eyewitness catch report.

46.043775, -89.715851

Est. water temp

72.4°F

v1 estimate from air temperature — not a sensor reading

Max depth

40 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: Boulder Junction (Vilas County, WI).

Today’s bite

Largemouth Bass fishing report

Excellent · 88/100

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 Diamond Lake

Location

Diamond Lake · 46.0438, -89.7159

Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors

Nearby

Other lakes nearby

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FAQ

Common questions

What fish are in Diamond Lake?

State surveys have confirmed Largemouth Bass, Muskellunge, Smallmouth Bass, and Walleye in Diamond Lake.

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

Where is Diamond Lake?

Diamond Lake is near Boulder Junction, WI, at 46.0438, -89.7159.

Plan your trip to Diamond Lake

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