Updated
Loon Lake
Lake · Antioch Township, Illinois
Recreational lake with a launch used for boating, fishing & other water activities.
Things to Do Near Loon Lake
Top-rated tours and experiences around Antioch Township, powered by Viator — free cancellation on most.
Chicago Lake and River Architecture Tour
Frank Lloyd Wright Tour in Oak Park
Bike Tour of Chicago's Lakefront Neighborhoods
Guided Seasonal Hike
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Current water conditions
Live data from NOAA buoy 45187 (15.8 mi away), as of Aug 20, 11:00 PM UTC. Conditions are for general information only and can change quickly — always judge the water in person and follow posted advisories before swimming.
Weather at Loon Lake
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Frequently asked questions
- Where is Loon Lake?
- Loon Lake is a lake in Antioch Township, Illinois.
- What is the water temperature at Loon Lake?
- As of August 20, 2026, the water temperature at Loon Lake in Antioch Township, Illinois is 74°F (23°C), measured by NOAA buoy 45187, 15.8 miles away.
- Can you swim at Loon Lake?
- There is no fixed answer for Loon Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Loon Lake in Antioch Township, Illinois. Check current water conditions before you go, and follow posted signs and local guidance.
- How is Loon Lake rated?
- Loon Lake in Antioch Township, Illinois has an average visitor rating of 4.6 out of 5, based on 21 reviews.
Visitor Reviews
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Best Times to Visit
- ›Check for boat launch facilities and fees
- ›Obtain required fishing licenses before arrival
- ›Be aware of lake-specific regulations and restrictions
- ›Monitor water quality reports before swimming
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