Rainbow Flowage
Oneida County, Wisconsin · WBIC 1595300
This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations
Size
2,035 acres
Max depth
28 ft
DNR lake type
Complex, Cool, dark water color
Water clarity
3.9 ft
Low, measured Aug 1994
A cool-water lake type: the DNR groups it with lakes that stay cooler through summer. This describes the lake type in general, not this lake in particular.
Outline
Numbered dots are boat landings; tap one for directions. The list below has the same numbers. Drawn from the DNR's 24K hydrography (surveyed 1970), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
3.9 ft Secchi depthLowOlder reading
Last measured Aug 17, 1994. 5 readings on record, 1993 to 1994.
Nothing has been measured in the last 5 years, so this may not match the lake today.
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 RAINBOW FLOWAGE - UP END (T39NR8ES09). Checked Oct 23, 2026.
Water temperature
A typical year Modeled estimate
- Ice goes outabout Apr 21 (Apr 14 to Apr 27)
- Surface reaches 48°Fabout May 2 (Apr 24 to May 9)
- Surface reaches 64°Fabout May 31 (May 29 to Jun 7)
- June surface69°F, usually 67 to 70°F
- July surface75°F, usually 73 to 76°F
- August surface72°F, usually 71 to 74°F
Mixes regularly through the summer instead of forming a warm top layer.
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
- Muskellungelast stocked 2022 (large fingerling); stocked in 4 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.
Fish recorded near this lake
- Walleye Sander vitreus1998; 1 record
Recorded in open fish survey and museum records (GBIF). A record shows a fish was found near this lake in that year, not that it is there now, and says nothing about how many. Most coordinates are rounded to about 1 km, so a record is attached only when one lake is the clear match.
Open fish survey and museum records from GBIF; datasets are listed on the sources page. Checked Oct 23, 2026.
Boat landings
- 1Rainbow Flowage - Dam AccessBoat ramp · Gravel surface · Other
Directions - 2Rainbow Flowage AccessCarry-in access · Gravel surface · State(dnr)
Directions - 3Rainbow Flowage - Rainbow Lake Road Carry-InCarry-in access · Unimproved surface · State(dnr)
Directions - 4Rainbow Flowage - Daves Landing AccessBoat ramp · Concrete surface · State(dnr)
Directions - 5Rainbow Flowage - Stormy Landing Road. AccessBoat ramp · Concrete Plank surface · State(dnr)
Directions - 6Rainbow Flowage - Oxbow Road AccessCarry-in access · Unimproved surface · State(dnr)
Directions - 7Rainbow Flowage - Oxbow Road AccessCarry-in access · Unimproved surface · State(dnr)
Directions
Wisconsin DNR public boat access sites. Checked Oct 23, 2026.
More lakes in Oneida County
- Corky Lake1.9 miles away
- Pickerel Lake2.2 miles away
- Little Pickerel Lake2.5 miles away
- North Nokomis Lake2.6 miles away
- Woodcock Lake2.8 miles away
- Gilmore Lake2.8 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
- Boat landingsWisconsin DNR public boat access sites, 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
- Fish recordedOpen fish survey and museum records, via GBIF, 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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