Lost Lake
Polk County, Wisconsin · WBIC 2479200
The DNR lists this lake's watershed (Balsam Branch-Apple River) as suspect or infected with VHS, a fish virus. The listing covers the watershed, not a test of this lake. About VHS
Size
10 acres
Max depth
6 ft
DNR lake type
Simple, Harsh
Water clarity
6 ft
Moderate, measured Sep 2024
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 1983), so the shape is approximate and a landing can sit a little off the shore. Open the DNR lake map.
Water clarity
6 ft Secchi depthModerate
Last measured Sep 10, 2024. 6 readings on record, 2023 to 2024.
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 Lost Lake - Deep Hole. Checked Oct 23, 2026.
Water temperature
Last measured Sep 10, 2024, too long ago to show as the current temperature.
A typical year Modeled estimate
- Ice goes outabout Apr 17 (Apr 9 to Apr 24)
- Surface reaches 48°Fabout Apr 20 (Apr 17 to Apr 30)
- Surface reaches 64°Fabout May 17 (May 10 to May 24)
- June surface72°F, usually 70 to 72°F
- July surface78°F, usually 77 to 79°F
- August surface74°F, usually 73 to 76°F
Forms a warm top layer around May 3, lasting about 120 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.
Measured: Wisconsin DNR via the Water Quality Portal (checked Oct 23, 2026). 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.
More lakes in Polk County
- Kenny Lake0.5 miles away
- Half Moon Lake1.1 miles away
- Antler Lake2.0 miles away
- Bone Lake2.4 miles away
- Balsam Lake2.6 miles away
- Rice Lake3.4 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
- 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.