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O'Leary Lake Water Details - WI
O'Leary Lake in Grant County, Wisconsin, offers anglers a quiet, scenic setting just minutes from nearby towns like Eagle Point and Sandy Hook. With two marinas within a mile and several convenient boat ramps and parks in the area, the lake provides easy access for a variety of fishing experiences.
This named-water page is not a claim that fishing is legal, safe, or productive here. Check public access, local regulations, fish-consumption advisories, and posted closures before fishing.
© OpenStreetMap contributors · open O'Leary Lake in OpenStreetMap or use coordinates 42.54083, -90.63818.
Current conditions & 3-day forecast
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Weather by Open-Meteo.
Water temperature & water-quality monitoring
Check the official EPA assessment (impaired-waters status and fish-consumption advisories) for O'Leary Lake at How’s My Waterway (EPA).
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Monitoring summaries from the Water Quality Portal.
State fishing records
Official WI state-record fish are published by the Wisconsin DNR — records there are the state's, not a MonsterRodHolders list.
Fish species
- Bluegill — source
- Freshwater Drum — source
- Pumpkinseed — source
- Common Carp — source
- Channel Catfish — source
- Flathead Catfish — source
- Longnose Gar — source
- Northern Pike — source
- Green Sunfish — source
- Bowfin — source
- Shovelnose Sturgeon — source
- White Bass — source
- Black Crappie — source
- Shortnose Gar — source
- Walleye — source
- Silver Carp — source
- Rock Bass — source
- Sauger — source
- Smallmouth Bass — source
- White Crappie — source
- Largemouth Bass — source
- Yellow Perch — source
Location facts
| Marinas nearby | 2 |
|---|---|
| Nearest marina (mi) | 1.05 |
| County | Grant |
| Water type | lake |
Nearby towns & communities
- Eagle Point (0.53 mi)
- Sandy Hook (1.44 mi)
- Fair Play (3.96 mi)