Cast Gill

Peters Lake

Walworth County, Wisconsin · WBIC 741400

Official regulationsDNR lake mapDepth map (PDF)

Size

64 acres

Max depth

8 ft

DNR lake type

Simple, Warm, dark water color

Water clarity

5.6 ft

Moderate, measured Sep 2022

A warm-water lake type: the DNR groups it with lakes that warm up through summer. This describes the lake type in general, not this lake in particular.

Outline

Drawn from the DNR's 24K hydrography (surveyed 1971), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.

Water clarity

5.6 ft Secchi depthModerate

Last measured Sep 6, 2022. 1 reading on record, 2022.

Only one reading is on record.

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 Peters Lake Deepest Spot. Checked Oct 23, 2026.

Water temperature

A typical year Modeled estimate

  • Ice goes outabout Mar 30 (Mar 26 to Apr 10)
  • Surface reaches 48°Fabout Apr 10 (Apr 1 to Apr 18)
  • Surface reaches 64°Fabout May 7 (May 3 to May 13)
  • June surface75°F, usually 73 to 76°F
  • July surface81°F, usually 78 to 82°F
  • August surface77°F, usually 74 to 79°F

Mixes regularly through the summer instead of forming a warm top layer.

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.

Fish recorded near this lake

Recorded in open fish survey and museum records (GBIF). A record shows a fish was found near this lake in that year, not that it is there now, and says nothing about how many. Most coordinates are rounded to about 1 km, so a record is attached only when one lake is the clear match.

Open fish survey and museum records from GBIF; datasets are listed on the sources page. Checked Oct 23, 2026.

Boat landings

  • Peters Lake (listed under Langlade County)Carry-in access · Unimproved surface · State(dnr)

Some landings are matched to this lake by name only, because the DNR list gives no location for them. They have no pin.

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

Share this lake

More lakes in Walworth County

All Walworth 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
  • Regulations linkWisconsin DNR fishing regulations (linked, not restated), 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
  • Fish recordedOpen fish survey and museum records, via GBIF, 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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