Beach Advisory: End of Beach Season - Check back in May

Beaches Monitored from Memorial Day through Labor Day

From May to September, the Health Department's Lakes Management Unit samples Lake Michigan beaches 4 days a week. Beaches on inland lakes are tested biweekly (2 times per month). The water samples are tested for E coli bacteria, which are found in the intestines of almost all warm-blooded animals. While not all strains of E coli are the same, certain strains can make humans sick if ingested in high enough concentrations.

View the revised 2021 Beach Monitoring schedule
IBSP North3 (1)


If water samples come back high for E coli (235 E coli/100 ml), the management body for the bathing beach is notified and a sign is posted indicating the beach closure. Additionally, since rain events tend to lead to elevated bacteria levels in the water column, the LMU advises that persons avoid swimming after a large rain event.

Note: Per the Illinois Swimming Code, there is no swimming at dog beaches.
Current and Historic Beach Data

Beach Safety:  Check for the most recent beach hazards, including high waves:
Bacteria Levels 
 Flag  Status
 green Low Bacteria Levels, No Advisory
 yellow Elevated Bacteria Levels, Caution Swimming Advisory
 red High Bacteria Levels. No Swimming is Advised

End of Beach Season - check back in May 2022


Inland Beaches - Swim Ban (no swimming)



Inland Beaches - Swim Advisory



End of Beach Season - check back in May 2022
Lake Michigan Beaches  Status
 Forest Park Beach   green
Illinois Beach State Park North Beach 

Illinois Beach State Park Resort Beach

Illinois Beach State Park South Beach 

Lake Bluff Dog Beach   green
Lake Bluff Sunrise Beach   green
Moraine Dog Beach - closed for repairs   red
North Point Marina Beach

Nunn Beach (Great Lakes), Friday - Sunday only
Park Avenue Boating Facility
Rosewood Beach
Waukegan North Beach
Waukegan South Beach