Onland Lake
Portage County, Wisconsin · WBIC 195100
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
47 acres
Max depth
14 ft
DNR lake type
Simple, Warm, clear water color
Water clarity
11 ft
Clear, measured Oct 2025
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 1986), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
11 ft Secchi depthClear
Last measured Oct 7, 2025. 129 readings on record, 2013 to 2025.
Typical summer clarity (June to September): 13 ft, clear, from 95 readings (2013 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 Onland Lake - Deep Hole. Checked Oct 23, 2026.
Water temperature
Last measured Oct 7, 2025, too long ago to show as the current temperature.
A typical year Modeled estimate
- Ice goes outabout Apr 12 (Apr 3 to Apr 23)
- Surface reaches 48°Fabout Apr 22 (Apr 15 to May 1)
- 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 18, lasting about 210 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.
More lakes in Portage County
- Rinehart Lake0.5 miles away
- Reton Lake1.3 miles away
- Minister Lake1.6 miles away
- Sunset Lake1.7 miles away
- Skunk Lake1.9 miles away
- Budsberg Lake2.5 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.
Something wrong on this page? Report a problem.