350  
FZUS53 KLOT 251522  
SRFLOT  
 
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES  
NATIONAL WEATHER SERVICE CHICAGO IL  
1022 AM CDT TUE AUG 25 2026  
 
ILZ006-261530-  
LAKE-  
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK  
1022 AM CDT TUE AUG 25 2026  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........71-75.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE MID 70S.  
WINDS.......................SOUTHEAST 10 TO 15 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY  
CLOUDY. A SLIGHT CHANCE OF SHOWERS LATE.  
LOW TEMPERATURE.............IN THE MID 60S.  
WINDS.......................SOUTH WINDS 10 TO 15 MPH.  
   
WEDNESDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................PARTLY CLOUDY. A SLIGHT CHANCE OF  
SHOWERS IN THE MORNING. A SLIGHT CHANCE  
OF THUNDERSTORMS. A CHANCE OF SHOWERS  
IN THE AFTERNOON.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTHWEST WINDS 10 TO 15 MPH, BECOMING  
WEST LATE.  
   
SWIM RISK OUTLOOK  
   
WEDNESDAY NIGHT  
LOW SWIM RISK*.    
THURSDAY  
LOW SWIM RISK*.    
THURSDAY NIGHT  
LOW SWIM RISK*.    
FRIDAY  
LOW SWIM RISK*.    
FRIDAY NIGHT  
LOW SWIM RISK*.    
SATURDAY  
LOW SWIM RISK*.  
 
 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 
 
 
ILZ103-104-261530-  
NORTHERN COOK-CENTRAL COOK-  
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT  
1022 AM CDT TUE AUG 25 2026  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........71-75.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE MID 70S.  
WINDS.......................SOUTHEAST 10 TO 15 MPH.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY  
CLOUDY. A SLIGHT CHANCE OF SHOWERS  
LATE.  
LOW TEMPERATURE.............IN THE UPPER 60S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
WEDNESDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................PARTLY CLOUDY. A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS IN THE  
MORNING, THEN A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTHWEST WINDS 10 TO 15 MPH, BECOMING  
WEST LATE.  
   
SWIM RISK OUTLOOK  
   
WEDNESDAY NIGHT  
LOW SWIM RISK*.    
THURSDAY  
LOW SWIM RISK*.    
THURSDAY NIGHT  
LOW SWIM RISK*.    
FRIDAY  
LOW SWIM RISK*.    
FRIDAY NIGHT  
LOW SWIM RISK*.    
SATURDAY  
LOW SWIM RISK*.  
 
 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 
 
 
INZ001-261530-  
LAKE-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
1022 AM CDT TUE AUG 25 2026  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........72-76.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE UPPER 70S.  
WINDS.......................SOUTHEAST AROUND 10.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY  
CLOUDY.  
LOW TEMPERATURE.............IN THE MID 60S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
WEDNESDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 2 FEET.  
WEATHER.....................PARTLY CLOUDY. A SLIGHT CHANCE OF  
SHOWERS AND THUNDERSTORMS LATE IN THE  
MORNING. A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTHWEST WINDS AROUND 10 MPH WITH  
GUSTS UP TO 20 MPH.  
   
SWIM RISK OUTLOOK  
   
WEDNESDAY NIGHT  
LOW SWIM RISK*.    
THURSDAY  
LOW SWIM RISK*.    
THURSDAY NIGHT  
LOW SWIM RISK*.    
FRIDAY  
LOW SWIM RISK*.    
FRIDAY NIGHT  
LOW SWIM RISK*.    
SATURDAY  
LOW SWIM RISK*.  
 
 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 
 
 
INZ002-261530-  
PORTER-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
1022 AM CDT TUE AUG 25 2026  
   
REST OF TODAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WATER TEMPERATURE...........72-76.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE MID 70S.  
WINDS.......................SOUTH WINDS AROUND 5 MPH, BECOMING EAST  
AROUND 5 MPH IN THE AFTERNOON.  
   
TONIGHT  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................PARTLY CLOUDY.  
LOW TEMPERATURE.............IN THE LOWER 60S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
WEDNESDAY  
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 TO 3 FEET.  
WEATHER.....................PARTLY CLOUDY. A CHANCE OF SHOWERS AND  
THUNDERSTORMS IN THE AFTERNOON.  
HIGH TEMPERATURE............AROUND 80.  
WINDS.......................SOUTHWEST WINDS 10 TO 15 MPH.  
   
SWIM RISK OUTLOOK  
   
WEDNESDAY NIGHT  
LOW SWIM RISK*.    
THURSDAY  
MODERATE SWIM RISK*.    
THURSDAY NIGHT  
LOW SWIM RISK*.    
FRIDAY  
LOW SWIM RISK*.    
FRIDAY NIGHT  
LOW SWIM RISK*.    
SATURDAY  
LOW SWIM RISK*.  
 
 
 
SWIM RISK CATEGORY  
* LOW RISK - LARGE WAVES AND DANGEROUS CURRENTS ARE NOT EXPECTED,  
HOWEVER DANGEROUS CURRENTS MAY EXIST AT ANY TIME NEAR PIERS,  
BREAKWALLS, AND RIVER OUTLETS.  
* MODERATE RISK - BREAKING WAVES AND CURRENTS ARE EXPECTED. STAY AWAY  
FROM DANGEROUS AREAS LIKE PIERS, BREAKWALLS, AND RIVER OUTLETS.  
ALWAYS HAVE A FLOTATION DEVICE WITH YOU IN THE WATER.  
* HIGH RISK - LIFE-THREATENING WAVES AND CURRENTS ARE EXPECTED. STAY  
OUT OF THE WATER AND STAY AWAY FROM DANGEROUS AREAS LIKE PIERS AND  
BREAKWALLS.  
 
** FOR THUNDERSTORM, WATERSPOUT, AND UV DEFINITIONS SEE:  
HTTPS://WWW.WEATHER.GOV/BEACH/LOT  
 
 
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