Where is Mercer Lake?

Mercer Lake is a lake in Mercer, Wisconsin.

How is Mercer Lake rated?

Mercer Lake in Mercer, Wisconsin has an average visitor rating of 4.5 out of 5, based on 16 reviews.

Updated August 13, 2025

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Photo: 2013-08-26 11 27 33 View east across Mercer Lake from the south end of the Mercer Lake Spillway on the Mercer Lake Dam by Famartin (CC BY-SA 3.0) License

Mercer Lake

Lake · Mercer, Wisconsin

4.5(16 reviews)

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Rainy today

Things to Do Near Mercer Lake

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Weather at Mercer Lake

H: 77° L: 49°

Light rain

64°

Feels like 65°

Precipitation

76%

Humidity

83%

Wind

3 mph

UV Index

Water Conditions:

🥶Too cold for most swimmers🌧️Rain expected

12 AM

54°

3 AM

50°

6 AM

49°

9 AM

59°

12 PM

73°

3 PM

77°

6 PM

65°

9 PM

60°

Pack smarter for Mercer Lake

Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.

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Inflatable PaddleboardA popular way to explore calm coves and shorelines.

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Life JacketImportant around boats, paddling, and deeper swimming areas.

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Floating CoolerKeeps drinks nearby for swim areas, docks, and boats.

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Waterproof Phone PouchProtects phones around docks, boats, and splashy shorelines.

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Frequently asked questions

Where is Mercer Lake?: Mercer Lake is a lake in Mercer, Wisconsin.
Can you swim at Mercer Lake?: There is no fixed answer for Mercer Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Mercer Lake in Mercer, Wisconsin. Check current water conditions before you go, and follow posted signs and local guidance.
How is Mercer Lake rated?: Mercer Lake in Mercer, Wisconsin has an average visitor rating of 4.5 out of 5, based on 16 reviews.

Visitor Reviews

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Been here? A quick note helps the next visitor plan their day. Handy things to mention:

Water temperatureCrowds & parkingBest time to goSafety & access

Best Times to Visit

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Right Now

Not ideal for outdoor activities today

🏞️ Lakes Tips:

›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

Best Seasons:

☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

Mercer, WI 54547

Mercer, Wisconsin 54547

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