Fishing Report
Big Sandy Lake Fishing Report
Sparta, WI
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Modeled from live National Weather Service data as of Aug 30, 2026 at 4:04 PM CDT, plus solunar and sun/moon times computed in-house. This is a computed report, not an eyewitness catch report.
43.948454, -90.684701
Est. water temp
84.6°F
v1 estimate from air temperature — not a sensor reading
Notes from anglers
Imported from GNIS. Nearest town: Sparta (Monroe County, WI).
Today’s bite
Black Crappie fishing report
Based on an estimated species for this un-surveyed lake.
Best window today: 8 PM (Good · 73/100)
See the full forecast →Likely species (estimated)
Estimated — not a state survey
Data for Big Sandy Lake hasn't been reported by the state. We're estimating the likely fish from 8 nearby lakes with confirmed surveys. These are informed guesses, not confirmed catches — treat them as a starting point.
- Black Crappie — estimated, not a confirmed record89% confidence · based on 8 lakes within 40 mi
- Bluegill — estimated, not a confirmed record89% confidence · based on 8 lakes within 40 mi
- Largemouth Bass — estimated, not a confirmed record89% confidence · based on 8 lakes within 40 mi
- Northern Pike — estimated, not a confirmed record78% confidence · based on 8 lakes within 40 mi
- Pumpkinseed — estimated, not a confirmed record89% confidence · based on 8 lakes within 40 mi
- Yellow Perch — estimated, not a confirmed record89% confidence · based on 8 lakes within 40 mi
Species detail
How to catch them at Big Sandy Lake
- Black CrappieEstimated
Black Crappie feed most actively at Dawn and Dusk, when activity runs about 16% above the daily average across all four light windows.
Typical Summer depth: 10-20 ft
Black Crappie fishing report → - BluegillEstimated
Bluegill feed most actively at Dawn and Dusk, when activity runs about 33% above the daily average across all four light windows.
Typical Summer depth: 10-20 ft
Bluegill fishing report → - Largemouth BassEstimated
Largemouth Bass feed most actively at Dawn and Dusk, when activity runs about 21% above the daily average across all four light windows.
Typical Summer depth: 8-20 ft
Largemouth Bass fishing report → - Northern PikeEstimated
Northern Pike feed most actively at Dawn and Dusk, when activity runs about 27% above the daily average across all four light windows.
Typical Summer depth: 6-20 ft
Northern Pike fishing report → - PumpkinseedEstimated
Pumpkinseed feed most actively at Daytime, when activity runs about 33% above the daily average across all four light windows.
Typical Summer depth: 3-10 ft
Pumpkinseed fishing report → - Yellow PerchEstimated
Yellow Perch feed most actively at Dawn and Dusk, when activity runs about 30% above the daily average across all four light windows.
Typical Summer depth: 10-25 ft
Yellow Perch fishing report →
Location
Big Sandy Lake · 43.9485, -90.6847
Map data © OpenFreeMap, OpenMapTiles, OpenStreetMap contributors
Nearby
Other lakes nearby
Read next
Guides & reports for these species
FAQ
Common questions
What fish are in Big Sandy Lake?
Big Sandy Lake hasn't been surveyed by the state yet, but based on nearby confirmed lakes it likely holds Black Crappie, Bluegill, Largemouth Bass, Northern Pike, Pumpkinseed, and Yellow Perch. These are estimates, not confirmed catches.
When's the best time to fish Big Sandy Lake?
Black Crappie feed most actively at Dawn and Dusk, when activity runs about 16% above the daily average across all four light windows. Check today's bite forecast for Big Sandy Lake to see the best window for current conditions.
Where is Big Sandy Lake?
Big Sandy Lake is near Sparta, WI, at 43.9485, -90.6847.
Plan your trip to Big Sandy Lake
Get the hour-by-hour bite forecast and the best times to fish Big Sandy Lake, scored against live National Weather Service weather for this exact spot — showing what every input contributed and how well the evidence supports it.