Gilbert Lake
Waushara County, Wisconsin · WBIC 186400
The DNR lists this lake's watershed (Willow Creek-Frontal Lake Poygan) as suspect or infected with VHS, a fish virus. The listing covers the watershed, not a test of this lake. About VHS
Size
141 acres
Max depth
65 ft
DNR lake type
Complex, Two Story
Water clarity
10.2 ft
Clear, measured Sep 2026
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 1983), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
10.2 ft Secchi depthClear
Last measured Sep 22, 2026. 465 readings on record, 1986 to 2026.
Typical summer clarity (June to September): 13 ft, clear, from 87 readings (2012 to 2026).
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 GILBERT LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
66.7°F surface, measured Sep 22, 2026
Measured near the surface (0.91 m down). A single reading, not a daily value.
A typical year Modeled estimate
- Ice goes outabout Apr 9 (Apr 2 to Apr 21)
- Surface reaches 48°Fabout Apr 24 (Apr 19 to May 4)
- Surface reaches 64°Fabout May 18 (May 10 to May 26)
- June surface72°F, usually 72 to 74°F
- July surface79°F, usually 77 to 80°F
- August surface75°F, usually 73 to 77°F
Forms a warm top layer around Apr 26, lasting about 187 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.
Measured: Wisconsin DNR via the Water Quality Portal (checked Oct 23, 2026). 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.
Stocking history
- Walleyelast stocked 2024 (fall yearling, large fingerling, small fingerling and yearling); stocked in 8 years since 2010
- Black Crappielast stocked 2023 (adult, large fingerling and yearling); stocked in 6 years since 2010
- Yellow Perchlast stocked 2023 (adult, large fingerling and yearling); stocked in 5 years since 2010
- Fathead Minnowlast stocked 2022 (adult and yearling); stocked in 12 years since 2010
- White Suckerlast stocked 2018 (adult, adult (broodstock), large fingerling and yearling); stocked in 6 years since 2010
- Rainbow Troutlast stocked 2016 (adult (broodstock)); stocked in 1 year since 2010
Stocking shows what was added to the lake, not what is in it now.
Wisconsin DNR annual fish stocking summary. Checked Oct 23, 2026.
Fish recorded near this lake
- Black Crappie Pomoxis nigromaculatus1997 to 2004; 9 records
- Bluegill Lepomis macrochirus1997 to 2005; 16 records
- Bluntnose Minnow Pimephales notatus1997 to 2001; 2 records
- Brown Bullhead Ameiurus nebulosus2001 to 2004; 2 records
- Green Sunfish Lepomis cyanellus1997 to 2004; 10 records
- Johnny Darter Etheostoma nigrum1997; 1 record
- Largemouth Bass Micropterus salmoides1997 to 2005; 16 records
- Mimic Shiner Notropis volucellus1997; 1 record
- Northern Pike Esox lucius1997 to 2005; 15 records
- Pumpkinseed Lepomis gibbosus1997 to 2005; 10 records
- Rainbow Trout Oncorhynchus mykiss2004; 2 records
- Rock Bass Ambloplites rupestris1997 to 2005; 11 records
- Walleye Sander vitreus1997 to 2005; 12 records
- White Sucker Catostomus commersonii1997 to 2004; 3 records
- Yellow Perch Perca flavescens1997 to 2005; 10 records
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
- 1Gilbert Lake Boat RampBoat ramp · Concrete Plank surface · Township
Directions - Gilbert Lake Carry-inCarry-in access · Unimproved surface · Township
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.
More lakes in Waushara County
- Pine Lake1.4 miles away
- Lost Lake1.5 miles away
- Pretty Lake1.9 miles away
- Twin Lake2.1 miles away
- Long Lake2.3 miles away
- Wilson Lake2.6 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
- Stocking historyWisconsin DNR annual fish stocking summary, 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
- Measured temperatureWisconsin 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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