Rainbow Flowage

Oneida, Wisconsin

Rainbow Flowage is a 3,153-acre Wisconsin River reservoir in Oneida County with a maximum depth of about 28 feet. WDNR lists panfish as abundant and walleye and northern pike as common.

Air temp in Saint Germain, WI Loading current temperature…

Map data © OpenStreetMap contributors.

Current air temperature at Rainbow Flowage (National Weather Service) ↗

Surface area3,153 acres

Max depth28 ft

Shoreline—

Boat motorsCheck local ordinances

Species

Fishery rating out of 5.

Bluegill●●●●○

Panfish listed as abundant by WDNR

Crappie●●●●○

Panfish listed as abundant by WDNR

Yellow Perch●●●○○

Panfish listed as abundant by WDNR

Walleye●●●○○

Listed as common by WDNR

Northern Pike●●●○○

Listed as common by WDNR

Muskellunge●●○○○

Listed as present by WDNR

Largemouth Bass●●○○○

Listed as present by WDNR

Smallmouth Bass●●○○○

Present; catch-and-release only per WDNR regs

Boat launches

5 launch sites. Fees and hours change, so confirm before you go.

Dam AccessPublic
Gravel rampDirections ↗
Daves Landing AccessPublic
Concrete rampDirections ↗
Stormy Landing Road AccessPublic
Concrete plank rampDirections ↗
Rainbow Lake Road accessPublic
Carry-in onlyDirections ↗
More public accessPublic
See the WDNR lake page for all landingsDirections ↗

Size & creel limits

Special rules for this lake, confirmed from official state regulations. Minimum size and daily limit.

Species	Min size	Daily limit
Walleye May 2, 2026-Mar 7, 2027	15 in (20-24 in may not be kept; 1 over 24 in allowed)	3 / day
Largemouth Bass May 2-Jun 19, 2026; Jun 20, 2026-Mar 7, 2027 combined LMB/SMB limit of 5	14 in	5 / day
Smallmouth Bass Jun 20, 2026-Mar 7, 2027 (combined with largemouth); May 2-Jun 19 catch and release only	14 in	5 / day
Northern Pike May 2, 2026-Mar 7, 2027	See Wisconsin rules book ↗	5 / day
Muskellunge May 2-Dec 31, 2026; open water only	50 in	1 / day
Panfish Open all year	See Wisconsin rules book ↗	25 / day
Catfish Open all year	See Wisconsin rules book ↗	10 / day
Lake Sturgeon No fishing allowed	Closed	0

Other species in this lake: look up the limits at Wisconsin DNR ↗

Verified October 2026. Rules change, so confirm current limits with the Wisconsin DNR before you fish.

Bait & tackle nearby

Closest shops to the lake and its boat launches. Call ahead for live bait and hours.

LT Bait & TackleNearby
7197 Bradley St., Lake Tomahawk, WI 54539715-277-2616 Directions ↗

Search more bait shops near Rainbow Flowage ↗

Local tips

Sandy, shallow flowage: fish stumps, weed edges and old river channel
Smallmouth bass are catch and release only
Clean, drain and dry gear: Eurasian milfoil and curly-leaf pondweed are present

View on interactive map

Zoom and pan on a street, satellite or terrain map. Red pins are boat launches; blue pins are bait shops nearby.

More Wisconsin lakes

Lake Puckaway Lake DuBay Lake Winneshiek Lake Winneconne Willow Flowage Lake Vieux Desert Lac Vieux Desert Trout Lake All Wisconsin lakes →

Always wear a life jacket and check your state's current regulations before you fish.