Cast Gill

Bean Lake

Jefferson County, Wisconsin · WBIC 774200

Official regulationsDNR lake map

This lake has fishing rules that differ from the standard ones for its area. Check the official rules before you fish. Official regulations

Size

33 acres

Max depth

6 ft

DNR lake type

Simple, Harsh

Water clarity

2.3 ft

Low, measured Apr 1996

A lake type the DNR marks as having harsh conditions for fish. This describes the lake type in general, not this lake in particular.

Outline

Drawn from the DNR's 24K hydrography (surveyed 1976), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.

Water clarity

2.3 ft Secchi depthLowOlder reading

Last measured Apr 10, 1996. 1 reading on record, 1996.

Only one reading is on record.

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 BEAN LAKE - DEEP HOLE. Checked Oct 23, 2026.

Water temperature

A typical year Modeled estimate

  • Ice goes outabout Apr 1 (Mar 26 to Apr 10)
  • Surface reaches 48°Fabout Apr 9 (Mar 31 to Apr 14)
  • Surface reaches 64°Fabout Apr 23 (Apr 17 to May 5)
  • June surface79°F, usually 77 to 80°F
  • July surface85°F, usually 83 to 87°F
  • August surface79°F, usually 76 to 81°F

Forms a warm top layer around Jun 21, lasting about 47 days.

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

Loading today's forecast…

Forecast: National Weather Service (no endorsement implied). Sunrise, sunset and moon phase are calculated. The moon phase can be a day off.

Share this lake

More lakes in Jefferson County

All Jefferson County lakes

Where this comes from

  • Size, depth and lake typeWisconsin DNR lake classifications, checked Oct 23, 2026
  • OutlineWisconsin DNR 24K hydrography, checked Oct 23, 2026
  • Regulations linkWisconsin DNR fishing regulations (linked, not restated), 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
  • VHS statusWisconsin DNR VHS status by watershed, checked Oct 24, 2026

See data sources for what each source covers, and about for how the numbers are matched to lakes.

Something wrong on this page? Report a problem.