Upper Kelly Lake
Waukesha County, Wisconsin · WBIC 7100
The DNR lists this lake's watershed (Root River) as suspect or infected with VHS, a fish virus. The listing covers the watershed, not a test of this lake. About VHS
This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations
Size
12 acres
Max depth
9 ft
DNR lake type
Simple, Warm, dark water color
Water clarity
4 ft
Low, measured Sep 2024
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 1993), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
4 ft Secchi depthLow
Last measured Sep 9, 2024. 462 readings on record, 1994 to 2024.
Typical summer clarity (June to September): 4.2 ft, low, from 97 readings (2012 to 2024).
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 UPPER KELLY LAKE - DEEP HOLE. Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 2 (Mar 29 to Apr 12)
- Surface reaches 48°Fabout Apr 11 (Apr 4 to Apr 19)
- Surface reaches 64°Fabout Apr 23 (Apr 16 to May 2)
- June surface80°F, usually 78 to 81°F
- July surface86°F, usually 83 to 88°F
- August surface80°F, usually 78 to 83°F
Forms a warm top layer around May 23, lasting about 86 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.
Stocking history
- Black Crappielast stocked 2024 (yearling); stocked in 1 year since 2010
- Bluegilllast stocked 2024 (yearling); stocked in 1 year since 2010
- Channel Catfishlast stocked 2024 (yearling); stocked in 1 year since 2010
- Yellow Perchlast stocked 2024 (yearling); stocked in 1 year since 2010
- Northern Pikelast stocked 2021 (large fingerling); stocked in 8 years 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.
More lakes in Waukesha County
- Lower Kelly Lake0.3 miles away
- Bass Bay Lake3.9 miles away
- Little Muskego Lake4.1 miles away
- Big Muskego Lake5.0 miles away
- Big Bend Pond8.2 miles away
- Lake Denoon8.3 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
- 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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