Wisconsin · United States

Lake Onalaska WI fishing forecast

69 Good of 100

Lake Onalaska WI is a freshwater fishing spot in Wisconsin, United States. Anglers here target Crappie, Bluegill, Northern Pike, Walleye. The most productive months are typically April, May, June, July, August, September.

Quick answer

Best monthsApril, May, June, July

Top speciesCrappie, Bluegill, Northern Pike

Score now69/100

Local rulesUnited States — Federal Waters

Today’s verdict

Ranks #189 of 644 spots FishRadar scored worldwide today

In line with this spot’s 7-day average

Score confidence ±12 points, from 6 live signals

Helping the score most

Water temperature+15.0Wind+12.0Barometric pressure+4.4

Pressure trend

Pressure stable — fish feeding on their usual rhythm

Current conditions

Sea surface temp	19.7 °C
Wind	12 km/h from NW, gusting 30 km/h
Pressure	1017 hPa
Cloud cover	0%
Chlorophyll	15.71 mg/m³
Salinity	0.0 PSU
UV index	4
Wind sea	0.0 m
Ground swell	0.0 m at 0 s

The water is running true to season — within a few tenths of the August average of 19.7 °C for this location. The water is mixed to about 20.0 m, with the thermocline below that.

Updated 1 h ago.

What the score means at Lake Onalaska WI

Lake Onalaska WI currently scores 69 out of 100 (Good). Water temperature is 19.7 °C. 6 forecast signals are active in this score.

Water temperature +15.0: how close the water is to this species mix’s comfort band
Wind +12.0: surface chop, oxygen and bait drift
Barometric pressure +4.4: falling pressure often triggers feeding
Thermocline +3.0: a defined layer stacks fish at one depth
Pre-storm bite +2.4: the classic feed before heavy weather
Moon phase +2.0: lunar feeding rhythm

What’s biting now

The model expects today: bluegill, common-carp, european-carp-entry, atlantic-sturgeon, white-perch, golden-trout, rock-bass, brown-bullhead

[object Object] — Protected here — release immediately

Bite windows

Moon

Waxing Gibbous · 82% lit

Solunar day rating

50 / 100

Best months for Lake Onalaska WI:

Score history at this spot

26 days tracked at this exact location

Best recent day: 2026-08-13, 79/100

17 day(s) at 70+ in the tracked period

+4 points vs the same day last week

About this spot

Water type

Lake · Freshwater

Lakes have no tide, so target structure, drop-offs, and seasonal thermoclines where fish concentrate by depth and temperature.

Access & shore

Fishable from shore · beach

What you can catch

Crappie

Pomoxis spp.
Bluegill

Lepomis macrochirus
Northern Pike

Esox lucius
Walleye

Sander vitreus

Best months by species at Lake Onalaska WI

CrappiePomoxis spp.
BluegillLepomis macrochirus
Northern PikeEsox lucius
WalleyeSander vitreus

Typical months; local seasons and closures apply.

Local regulations

U.S. federal fisheries authority

United States — Federal Waters

Licensing:

saltwater-recreational — residents Federal Recreational Fishing License may be required in addition to state license when fishing federal (EEZ) waters., non-residents Same as residents. Many states require their own license even in federal waters.

FishRadar regulations are summaries only. Federal and state waters rules overlap — always verify current federal and state agency rules before fishing.