Long Lake
Polk County, Wisconsin · WBIC 2483100
Size
55 acres
Max depth
31 ft
DNR lake type
Simple, Cool, dark water color
Water clarity
11 ft
Clear, measured Sep 2022
A cool-water lake type: the DNR groups it with lakes that stay cooler through summer. This describes the lake type in general, not this lake in particular.
Outline
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
11 ft Secchi depthClear
Last measured Sep 5, 2022. 17 readings on record, 2001 to 2022.
Measured at the monitoring station named “MOCCASIN (LONG) LAKE - DEEP HOLE”.
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 MOCCASIN (LONG) LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 17 (Apr 9 to Apr 24)
- Surface reaches 48°Fabout Apr 26 (Apr 18 to May 2)
- Surface reaches 64°Fabout May 15 (May 9 to May 21)
- June surface73°F, usually 71 to 73°F
- July surface79°F, usually 77 to 80°F
- August surface74°F, usually 73 to 76°F
Forms a warm top layer around Apr 25, lasting about 171 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
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 Polk County
- Dahl Lake1.5 miles away
- Little Ward Lake2.4 miles away
- Straight Lake2.5 miles away
- Ward Lake2.7 miles away
- Vincent Lake3.2 miles away
- McKenzie Lake3.6 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
- 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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