Knight Lake

Waupaca County, Wisconsin · WBIC 262700

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

Size

9.0 acres

Max depth

42 ft

DNR lake type

Complex, Two Story

Water clarity

14.2 ft

Clear, measured Jul 2016

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

Numbered dots are boat landings; tap one for directions. The list below has the same numbers. 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

14.2 ft Secchi depthClearOlder reading

Last measured Jul 26, 2016. 113 readings on record, 1994 to 2016.

Nothing has been measured in the last 5 years, so this may not match the lake today.

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 KNIGHT LAKE - DEEP HOLE. Checked Oct 23, 2026.

Water temperature

A typical year Modeled estimate

  • Ice goes outabout Apr 5 (Apr 1 to Apr 13)
  • Surface reaches 48°Fabout Apr 18 (Apr 10 to Apr 24)
  • Surface reaches 64°Fabout May 14 (May 9 to May 24)
  • June surface72°F, usually 71 to 74°F
  • July surface78°F, usually 76 to 79°F
  • August surface75°F, usually 73 to 77°F

Forms a warm top layer around Apr 16, lasting about 215 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

Loading today's forecast…

Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.

Boat landings

Wisconsin DNR public boat access sites. Checked Oct 23, 2026.

Share this lake

More lakes in Waupaca County

All Waupaca County lakes

Where this comes from

  • Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
  • OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
  • Boat landingsWisconsin DNR public boat access sites, 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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