Curtis Lake
Waushara County, Wisconsin · WBIC 156300
The DNR lists this lake's watershed (Mecan River) as suspect or infected with VHS, a fish virus. The listing covers the watershed, not a test of this lake. About VHS
Size
33 acres
Max depth
45 ft
DNR lake type
Simple, Warm, dark water color
Water clarity
8.7 ft
Moderate, measured Sep 2026
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
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
8.7 ft Secchi depthModerate
Last measured Sep 2, 2026. 53 readings on record, 1992 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 CURTIS LAKE - DEEPEST POINT. Checked Oct 23, 2026.
Water temperature
77.9°F surface, measured Sep 2, 2026
Measured near the surface (1 m down). A single reading, not a daily value.
A typical year Modeled estimate
- Ice goes outabout Apr 9 (Apr 3 to Apr 16)
- Surface reaches 48°Fabout Apr 19 (Apr 13 to Apr 29)
- Surface reaches 64°Fabout May 12 (May 8 to May 24)
- June surface73°F, usually 72 to 74°F
- July surface79°F, usually 78 to 80°F
- August surface75°F, usually 73 to 77°F
Forms a warm top layer around Apr 17, lasting about 186 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.
Boat landings
- 1Curtis Lake County Park Boat RampBoat ramp · Gravel surface · County
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Waushara County
- Zinke Lake1.8 miles away
- Lake Jeanette4.7 miles away
- Bing Lake4.7 miles away
- Lake Virginia4.7 miles away
- Witters Lake6.5 miles away
- West Branch Mill P.(White River)6.6 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
- 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
- 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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