Beach · Cook County · IL
Is Lincoln Street Beach safe to swim?
No advisory or algae bloom reported for this water today.
Updated July 19, 2026 · Illinois beach program (EPA BEACON)
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What's in the water at Lincoln Street Beach right now
As of July 19, 2026, Lincoln Street Beach in Cook County, Illinois is clear to swim. Blue-green algae are not currently monitored at this water. No fecal-bacteria advisory is posted (state beach program). Rainfall over the past week totaled 0.0 in, which can wash bacteria and nutrients into the water.
Blue-green algae at Lincoln Street Beach
Lincoln Street Beach is a lake in Cook County, Illinois. Blue-green algae are not currently monitored at this water.
Blue-green algae (cyanobacteria) blooms are most common from midsummer into early fall, when the water is warm, calm, and rich in nutrients from runoff. They can produce toxins that make people sick and can be rapidly fatal to dogs, so skip water that looks green, scummy, or like spilled paint, and keep children and pets out of it.
Frequently asked: swimming in Lincoln Street Beach
- Is it safe to swim in Lincoln Street Beach right now?
- Lincoln Street Beach is clear to swim today. Blue-green algae are not currently monitored at this water. Conditions can change quickly with wind, heat, and rain, so check the posted signs and look at the water before you get in.
- Does Lincoln Street Beach have blue-green algae (cyanobacteria)?
- Blue-green algae are not currently monitored at Lincoln Street Beach. Watch for green, blue-green, or paint-like scum and avoid the water if you see it.
- Can dogs swim in Lincoln Street Beach?
- No bloom is detected at Lincoln Street Beach today, but dogs are much more vulnerable to blue-green algae than people, and blooms can form within hours. Always keep dogs away from water that looks green, scummy, or discolored, and rinse them off after swimming.
- How many Illinois lakes and beaches have swim advisories today?
- Today, 53 Illinois waters are under a swim advisory and 7 more warrant caution, out of 138 monitored waters SwimZone tracks in the state.
- How is Lincoln Street Beach's water quality measured?
- SwimZone builds this read from EPA CyAN satellite imagery for blue-green algae, official beach and fecal-bacteria advisories where a program monitors Lincoln Street Beach, and a recent-rainfall overlay, all refreshed daily. It was last updated July 19, 2026.