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Photo: Cowan Lake State Park, Wilmington, Ohio. by Unknown (No restrictions) License

Cowan Lake State Park

State park · Wilmington, Ohio

Great conditions todaycamping-nearbyBarbecue grillBasketball courtPicnic tables

Camping & cabin rentals are available in this 1,075-acre park that offers hiking, boating & fishing.

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Weather at Cowan Lake State Park

H: 80° L: 64°
Sunny
Sunny
78°
|
Feels like 81°
Precipitation
84%
Humidity
67%
Wind
5 mph
UV Index
7
Water Conditions:
🏊Perfect for swimming🧴High UV - use sunscreen
12 AM
Patchy rain nearby
70°
3 AM
Heavy rain
69°
6 AM
Patchy rain nearby
67°
9 AM
Patchy rain nearby
68°
12 PM
Overcast
70°
3 PM
Partly Cloudy
79°
6 PM
Sunny
80°
9 PM
Clear
73°

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Frequently asked questions

Where is Cowan Lake State Park?
Cowan Lake State Park is a state park in Wilmington, Ohio.
Can you swim at Cowan Lake State Park?
There is no fixed answer for Cowan Lake State Park: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Cowan Lake State Park in Wilmington, Ohio. Check current water conditions before you go, and follow posted signs and local guidance.
How is Cowan Lake State Park rated?
Cowan Lake State Park in Wilmington, Ohio has an average visitor rating of 4.5 out of 5, based on 1466 reviews.
What amenities does Cowan Lake State Park have?
Visitor-listed amenities at Cowan Lake State Park include camping-nearby.

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

Right Now
Perfect conditions right now!
General Tips:
  • Weekday mornings (8–10 AM) are typically less crowded
  • Check the forecast 2–3 days ahead for best planning
  • Avoid holiday weekends for a quieter experience
Best Seasons:
☀️ Summer (Jun-Aug)🍂 Fall (Sep-Nov)🌸 Spring (Mar-May)

Location & Contact

1750 Osborn Rd, Wilmington, OH 45177

Wilmington, Ohio 45177

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Highlights

Picnics

Accessibility

Wheelchair accessible entranceWheelchair accessible parking lot

Amenities

Camping nearby🍖 Barbecue grill🏀 Basketball court🧺 Picnic tables🚻 Public restroom🏪 Slides🏪 Swings

Family & Children

👶 Good for kids👶 Good for kids birthday👶 Kid-friendly hikes👶 Playground