Marl Lake
Waupaca County, Wisconsin · WBIC 264100
The DNR lists this lake's watershed (Waupaca River) as suspect or infected with VHS, a fish virus. The listing covers the watershed, not a test of this lake. About VHS
This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations
Size
13 acres
Max depth
59 ft
DNR lake type
Complex, Two Story
Water clarity
14 ft
Clear, measured Jun 2025
A deep lake type that can hold a cold layer below the warm surface in summer. This describes the lake type in general, not this lake in particular.
Outline
Drawn from the DNR's 24K hydrography (surveyed 1982), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
14 ft Secchi depthClear
Last measured Jun 15, 2025. 181 readings on record, 1993 to 2025.
Typical summer clarity (June to September): 13.4 ft, clear, from 56 readings (2012 to 2025).
Secchi depth is how far down a white disk stays visible. A bigger number means clearer water. Clear means a Secchi depth of 10 feet or more, moderate 5 to 10 feet, low under 5 feet.
Wisconsin DNR water monitoring (volunteer and staff), via the Water Quality Portal; station MARL LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 5 (Apr 1 to Apr 14)
- Surface reaches 48°Fabout Apr 18 (Apr 10 to Apr 24)
- Surface reaches 64°Fabout May 12 (May 8 to May 24)
- June surface73°F, usually 72 to 75°F
- July surface79°F, usually 77 to 80°F
- August surface75°F, usually 73 to 77°F
Forms a warm top layer around Apr 16, lasting about 201 days.
A computer model of this lake's typical weather and water, built from 15 years, 2005 to 2019. Ranges show the middle half of years. The model was not calibrated against measured temperatures for this lake. It is an estimate, not a measurement.
Modeled: U.S. Geological Survey lake temperature data release (doi:10.5066/P9CA6XP8).
Today at the lake
Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.
More lakes in Waupaca County
- Pope Lake0.2 miles away
- Manomin Lake0.3 miles away
- Knight Lake0.5 miles away
- Long Lake0.5 miles away
- Lake Orlando0.5 miles away
- Beasley Lake0.6 miles away
Where this comes from
- Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
- OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
- Regulations linkWisconsin DNR fishing regulations (linked, not restated), checked Oct 23, 2026
- Water clarityWisconsin DNR water monitoring, via the Water Quality Portal, checked Oct 23, 2026
- Typical-year temperatureU.S. Geological Survey lake temperature model (modeled estimate), checked Oct 23, 2026
- VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026
- Depth map linkWisconsin DNR lake maps list, checked Oct 24, 2026
See data sources for what each source covers, and about for how the numbers are matched to lakes.
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