Updated
Thorn Lake
Reservoir
Great conditions today
Interactive map not available
Weather at Thorn Lake
H: 83° L: 60°
Sunny
77°
|
Feels like 72°
Precipitation
4%
Humidity
39%
Wind
10 mph
UV Index
0.6
Water Conditions:
🏊Perfect for swimming
12 AM
66°
3 AM
62°
6 AM
60°
9 AM
70°
12 PM
76°
3 PM
83°
6 PM
77°
9 PM
69°
Sponsored gear checklist
Pack smarter for Thorn Lake
Useful gear categories for this kind of water spot. These links open Amazon search results so you can compare current options.
As an Amazon Associate we earn from qualifying purchases.
Inflatable PaddleboardA popular way to explore calm coves and shorelines.
Compare on Amazon →Life JacketImportant around boats, paddling, and deeper swimming areas.
Compare on Amazon →Floating CoolerKeeps drinks nearby for swim areas, docks, and boats.
Compare on Amazon →Waterproof Phone PouchProtects phones around docks, boats, and splashy shorelines.
Compare on Amazon →Frequently asked questions
- Where is Thorn Lake?
- Thorn Lake is a reservoir in Illinois.
- Can you swim at Thorn Lake?
- There is no fixed answer for Thorn Lake: whether it is safe to swim there on a given day depends on the water temperature, recent rainfall, and any advisories posted at Thorn Lake in Illinois. Check current water conditions before you go, and follow posted signs and local guidance.
Advertisement
Visitor Reviews
Be the first to share your experience here
Join our community to share your water adventures
Earn badges as you share your experiences!
💧 Droplet💦 Stream🌊 Wave💧 Current🌀 Tide🌊 Ocean
No reviews yet — share what you know
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!
🏞️ 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
Illinois
</> Embed this location on your site
Paste this snippet into your website to show a live badge for Thorn Lake — free to use with the included credit link.