Fishing Report
Heidmann Lake Fishing Report
Denmark, WI
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Modeled from live National Weather Service data as of Aug 30, 2026 at 11:17 AM CDT, plus solunar and sun/moon times computed in-house. This is a computed report, not an eyewitness catch report.
44.344968, -87.713033
Est. water temp
79.5°F
v1 estimate from air temperature — not a sensor reading
Max depth
34 ft
Deepest measurement on record
Mean depth: 14 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: Denmark (Kewaunee County, WI).
Today’s bite
Largemouth Bass fishing report
Best window today: 2 PM (Excellent · 100/100)
See the full forecast →Species on record
Suggest a species for this lake →Species detail
How to catch them at Heidmann Lake
Largemouth Bass feed most actively at Dawn and Dusk, when activity runs about 21% above the daily average across all four light windows.
Typical Summer depth: 8-20 ft
Largemouth Bass fishing report →Northern Pike feed most actively at Dawn and Dusk, when activity runs about 27% above the daily average across all four light windows.
Typical Summer depth: 6-20 ft
Northern Pike fishing report →
Location
Heidmann Lake · 44.3450, -87.7130
Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors
Nearby
Other lakes nearby
Read next
Guides & reports for these species
FAQ
Common questions
What fish are in Heidmann Lake?
State surveys have confirmed Largemouth Bass and Northern Pike in Heidmann Lake.
When's the best time to fish Heidmann Lake?
Largemouth Bass feed most actively at Dawn and Dusk, when activity runs about 21% above the daily average across all four light windows. Check today's bite forecast for Heidmann Lake to see the best window for current conditions.
Where is Heidmann Lake?
Heidmann Lake is near Denmark, WI, at 44.3450, -87.7130.
Plan your trip to Heidmann Lake
Get the hour-by-hour bite forecast and the best times to fish Heidmann Lake, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.