319
FZUS53 KLOT 211624
SRFLOT
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES
NATIONAL WEATHER SERVICE CHICAGO IL
1124 AM CDT FRI AUG 21 2026
ILZ006-221630-
LAKE-
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK
1124 AM CDT FRI AUG 21 2026
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS LATE
IN THE MORNING, THEN SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
HIGH TEMPERATURE............AROUND 80.
WINDS.......................SOUTH WINDS 5 TO 10 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WEATHER.....................MOSTLY CLOUDY. SHOWERS AND
THUNDERSTORMS LIKELY EARLY IN THE
EVENING.
LOW TEMPERATURE.............IN THE MID 60S.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH, BECOMING
WEST AFTER MIDNIGHT.
SATURDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................PARTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH.
SWIM RISK OUTLOOK
SATURDAY NIGHT
MODERATE SWIM RISK*.
SUNDAY
MODERATE SWIM RISK*.
SUNDAY NIGHT
LOW SWIM RISK*.
MONDAY
LOW SWIM RISK*.
MONDAY NIGHT
LOW SWIM RISK*.
TUESDAY
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
ILZ103-104-221630-
NORTHERN COOK-CENTRAL COOK-
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT
1124 AM CDT FRI AUG 21 2026
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS LATE
IN THE MORNING, THEN SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
HIGH TEMPERATURE............IN THE LOWER 80S.
WINDS.......................SOUTH WINDS 5 TO 10 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE EVENING.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH, BECOMING
WEST LATE.
SATURDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................2 TO 4 FEET.
WEATHER.....................PARTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS IN THE
AFTERNOON.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH, BECOMING
NORTH LATE.
SWIM RISK OUTLOOK
SATURDAY NIGHT
MODERATE SWIM RISK*.
SUNDAY
HIGH SWIM RISK*.
SUNDAY NIGHT
MODERATE SWIM RISK*.
MONDAY
LOW SWIM RISK*.
MONDAY NIGHT
LOW SWIM RISK*.
TUESDAY
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
INZ001-221630-
LAKE-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
1124 AM CDT FRI AUG 21 2026
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 FOOT OR LESS.
WATER TEMPERATURE...........72-76.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS LATE
IN THE MORNING, THEN SHOWERS LIKELY AND
A CHANCE OF THUNDERSTORMS IN THE LATE
AFTERNOON.
HIGH TEMPERATURE............IN THE LOWER 80S.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................MOSTLY CLOUDY. SHOWERS AND
THUNDERSTORMS LIKELY, MAINLY IN THE
EVENING.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH.
SATURDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................2 TO 4 FEET.
WEATHER.....................PARTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH, BECOMING
NORTH IN THE AFTERNOON.
SWIM RISK OUTLOOK
SATURDAY NIGHT
HIGH SWIM RISK*.
SUNDAY
HIGH SWIM RISK*.
SUNDAY NIGHT
HIGH SWIM RISK*.
MONDAY
LOW SWIM RISK*.
MONDAY NIGHT
LOW SWIM RISK*.
TUESDAY
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
INZ002-221630-
PORTER-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
1124 AM CDT FRI AUG 21 2026
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 FOOT OR LESS.
WATER TEMPERATURE...........72-76.
WEATHER.....................PARTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS LATE IN THE MORNING, THEN A
CHANCE OF SHOWERS AND THUNDERSTORMS IN
THE LATE AFTERNOON.
HIGH TEMPERATURE............AROUND 80.
WINDS.......................SOUTHWEST WINDS AROUND 5 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY. SHOWERS AND THUNDERSTORMS
LIKELY, MAINLY IN THE EVENING.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH.
SATURDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................4 TO 6 FEET.
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS LATE.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH, BECOMING
NORTH LATE.
SWIM RISK OUTLOOK
SATURDAY NIGHT
HIGH SWIM RISK*.
SUNDAY
HIGH SWIM RISK*.
SUNDAY NIGHT
HIGH SWIM RISK*.
MONDAY
LOW SWIM RISK*.
MONDAY NIGHT
LOW SWIM RISK*.
TUESDAY
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page