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LakeQuality

Sherman Park Lagoon Lake

Cook County, IllinoisView mapDirections

No nutrient or algae sampling on record from Illinois EPA for this lake.

Water temp
~57°F
Typical for Oct · EPA WQP
  • Limited data

Sherman Park Lagoon Lake in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported.

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Sherman Park Lagoon Lake is a lake in Cook County, Illinois.

Source: EPA Water Quality Portal sampling records, Illinois EPA, last sampled 2023-05-10. Methodology: how these readings are compared.

Swimming conditions

No reading

Limited data

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Whether Sherman Park Lagoon Lake is safe to swim in today is a call for the Illinois Environmental Protection Agency and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Sherman Park Lagoon Lake

These are the measurements Illinois EPA publishes for Sherman Park Lagoon Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.

No clarity data.

Ask about Sherman Park Lagoon Lake

Answers come straight from the public measurements and survey records on this page.

Water Temperature

Sherman Park Lagoon Lake typically sits around 57°F at the surface in October. Summer average is about 76°F. Usually warmest in Jun (about 78°F) and coldest in Oct (about 57°F). These are typical values by month — not a live reading.

Jan
Feb
Mar
Apr
69°
May
78°
Jun
75°
Jul
75°
Aug
Sep
57°
Oct
Nov
Dec

Column height runs from this lake’s coldest month (57°F) to its warmest (78°F).

Typical surface water temperature by month, from 40 field readings (2014–2023) via the EPA Water Quality Portal. See the full Sherman Park Lagoon Lake water temperature breakdown →

Stays via Stay22

Stays near Sherman Park Lagoon Lake

Compare lakeside cabins, hotels, and vacation rentals near Sherman Park Lagoon Lake in Cook County, Illinois — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.

Top-rated places to stay near Sherman Park Lagoon Lake

Prices for Oct 23–25, 4 adults. Change dates on the map below.

Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.

Planning a whole trip? See where to stay at Illinois’s top lakes →

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Fishing Sherman Park Lagoon Lake

Nearby Lakes in Cook County

Frequently asked questions about Sherman Park Lagoon Lake

Where is Sherman Park Lagoon Lake?

Sherman Park Lagoon Lake is a lake in Cook County, Illinois. Its water-quality measurements are published by Illinois EPA and shown on this page as reported.

What is the water quality of Sherman Park Lagoon Lake?

Sherman Park Lagoon Lake in Cook County, Illinois has water-quality measurements published by Illinois EPA, shown here as reported.

Measurements on this page ↑

Is Sherman Park Lagoon Lake safe to swim in?

Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.

Swimming on this page ↑

What is the water temperature of Sherman Park Lagoon Lake?

Sherman Park Lagoon Lake typically sits around 57°F at the surface in October, from 40 EPA Water Quality Portal field readings (2014–2023). That is a typical value for the month, not a live reading.

Temp on this page ↑

Planning a trip around Indiana Dunes?

Sherman Park Lagoon Lake is about 31 miles from Indiana Dunes National Park. Crowds there swing hard by season, so the month you pick changes both how busy the park is and what lodging costs.

Best time to visit Indiana Dunes →

Where this data comes from

1 measurement from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.

Collected and reported by

  • USGS Illinois Water Science CenterUSGS-IL1 sample · 2023

Analytical methods

  • Secchi disk method
Monitoring station identifiers (1)

EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.