963  
FZUS53 KLOT 041453  
SRFLOT  
 
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES  
NATIONAL WEATHER SERVICE CHICAGO IL  
953 AM CDT TUE AUG 4 2026  
 
ILZ006-051500-  
LAKE-  
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK  
953 AM CDT TUE AUG 4 2026  
   
REST OF TODAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WATER TEMPERATURE...........69-73.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE MID 80S.  
WINDS.......................SOUTH WINDS AROUND 10 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................PARTLY CLOUDY WITH A CHANCE OF  
A SHOWER.  
LOW TEMPERATURE.............IN THE UPPER 60S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH, BECOMING WEST  
LATE.  
   
WEDNESDAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................MOSTLY CLOUDY WITH SHOWERS AND A  
FEW THUNDERSTORMS.  
HIGH TEMPERATURE............IN THE UPPER 70S.  
WINDS.......................SOUTHWEST WINDS AROUND 10 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  
 

 
 
ILZ103-104-051500-  
NORTHERN COOK-CENTRAL COOK-  
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT  
953 AM CDT TUE AUG 4 2026  
   
REST OF TODAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FT.  
WATER TEMPERATURE...........68-72.  
WEATHER.....................PARTLY CLOUDY.  
HIGH TEMPERATURE............IN THE MID 80S.  
WINDS.......................SOUTH WINDS AROUND 10 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FT.  
WEATHER.....................PARTLY CLOUDY WITH A CHANCE OF  
A SHOWER.  
LOW TEMPERATURE.............AROUND 70.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
WEDNESDAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 FOOT OR LESS.  
WEATHER.....................MOSTLY CLOUDY WITH SHOWERS  
AND A FEW THUNDERSTORMS.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTHWEST WINDS AROUND 10 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  
 

 
 
INZ001-051500-  
LAKE-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
953 AM CDT TUE AUG 4 2026  
   
REST OF TODAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WATER TEMPERATURE...........69-73.  
WEATHER.....................MOSTLY SUNNY.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................PARTLY CLOUDY.  
LOW TEMPERATURE.............IN THE UPPER 60S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
WEDNESDAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 FOOT OR LESS.  
WEATHER.....................MOSTLY CLOUDY WITH SHOWERS  
AND A FEW THUNDERSTORMS.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTHWEST WINDS AROUND 10 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  
 

 
 
INZ002-051500-  
PORTER-  
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK  
953 AM CDT TUE AUG 4 2026  
   
REST OF TODAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WATER TEMPERATURE...........69-73.  
WEATHER.....................MOSTLY SUNNY.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
TONIGHT
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................AROUND 1 FOOT.  
WEATHER.....................PARTLY CLOUDY.  
LOW TEMPERATURE.............IN THE UPPER 60S.  
WINDS.......................SOUTH WINDS 5 TO 10 MPH.  
   
WEDNESDAY
 
 
SWIM RISK*..................LOW.  
WAVE HEIGHT.................1 FOOT OR LESS.  
WEATHER.....................MOSTLY CLOUDY WITH SHOWERS  
AND A FEW THUNDERSTORMS.  
HIGH TEMPERATURE............IN THE LOWER 80S.  
WINDS.......................SOUTHWEST WINDS AROUND 10 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  
 

 
 
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