Is Forbes Lake Safe for Swimming?
Forbes Lake in Marion County, Illinois has limited nutrient and algae sampling on record. A water-quality reading is not a swimming clearance. The state water agency and county health departments post current advisories; check them before you swim.. Always check local health department advisories before swimming.
Key Metrics
| Metric | Value |
|---|---|
| Maximum Depth | 28 ft |
| Location | Marion County, Illinois |
How does Forbes Lake compare?
Forbes Lake does not have enough recent summer sampling to compare with the Illinois state average.
Stays via Stay22
Where to stay near Forbes Lake
Compare cabins, hotels, and vacation rentals near Forbes Lake in Marion County, Illinois. Live availability and prices for your nights. Switch the map to Satellite to see how close each stay is to the water.
Top-rated places to stay near Forbes Lake
Prices for Oct 16–18, 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 trip to Forbes Lake?
Get lake water-quality updates plus the best cabin & lodging deals near Forbes Lake — straight to your inbox. No spam, unsubscribe anytime.
Watch Forbes Lake water quality
Get an email when the clarity or algae readings change. Unsubscribe anytime.