642
FZUS53 KLOT 231442
SRFLOT
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES
NATIONAL WEATHER SERVICE CHICAGO IL
942 AM CDT SUN AUG 23 2026
ILZ006-241445-
LAKE-
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK
942 AM CDT SUN AUG 23 2026
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FT.
WATER TEMPERATURE...........71-75.
WEATHER.....................SUNNY, THEN BECOMING PARTLY CLOUDY.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH BECOMING
NORTHEAST AROUND 10 MPH THIS AFTERNOON.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY CLEAR.
LOW TEMPERATURE.............IN THE UPPER 50S.
WINDS.......................NORTHEAST WINDS 5 TO 10 MPH BECOMING
NORTHWEST.
MONDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY SUNNY.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTHWEST WINDS AROUND 5 MPH, BECOMING
NORTHEAST LATE.
SWIM RISK OUTLOOK
MONDAY NIGHT
LOW SWIM RISK*.
TUESDAY
LOW SWIM RISK*.
TUESDAY NIGHT
LOW SWIM RISK*.
WEDNESDAY
LOW SWIM RISK*.
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
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
ILZ103-104-241445-
NORTHERN COOK-CENTRAL COOK-
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT
942 AM CDT SUN AUG 23 2026
REST OF TODAY
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................2 TO 4 FEET SUBSIDING TO 1 TO 3 FT LATE
THIS AFTERNOON.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY
CLOUDY.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTHWEST WINDS 10 TO 15 MPH BECOMING
NORTHEAST AROUND 10 MPH THIS AFTERNOON.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY CLEAR.
LOW TEMPERATURE.............IN THE LOWER 60S.
WINDS.......................NORTHEAST WINDS 5 TO 10 MPH BECOMING
NORTHWEST.
MONDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY SUNNY.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................WEST WINDS AROUND 5 MPH, BECOMING NORTH
IN THE AFTERNOON.
SWIM RISK OUTLOOK
MONDAY NIGHT
LOW SWIM RISK*.
TUESDAY
LOW SWIM RISK*.
TUESDAY NIGHT
LOW SWIM RISK*.
WEDNESDAY
LOW SWIM RISK*.
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
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
INZ001-241445-
LAKE-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
942 AM CDT SUN AUG 23 2026
REST OF TODAY
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................2 TO 4 FEET.
WATER TEMPERATURE...........69-73.
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY
CLOUDY.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTHWEST WINDS 10 TO 20 MPH BECOMING
NORTHEAST 10 TO 15 MPH THIS AFTERNOON.
TONIGHT
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................2 TO 4 FEET SUBSIDING TO 1 TO 3 FT.
WEATHER.....................MOSTLY CLEAR.
LOW TEMPERATURE.............IN THE LOWER 60S.
WINDS.......................NORTH WINDS 5 TO 10 MPH, BECOMING
NORTHWEST IN THE LATE EVENING AND
OVERNIGHT.
MONDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY SUNNY, THEN BECOMING PARTLY
CLOUDY.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................WEST WINDS AROUND 5 MPH, BECOMING NORTH
IN THE AFTERNOON.
SWIM RISK OUTLOOK
MONDAY NIGHT
LOW SWIM RISK*.
TUESDAY
LOW SWIM RISK*.
TUESDAY NIGHT
LOW SWIM RISK*.
WEDNESDAY
LOW SWIM RISK*.
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
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
INZ002-241445-
PORTER-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
942 AM CDT SUN AUG 23 2026
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH THIS EVENING
REST OF TODAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................3 TO 5 FEET.
WATER TEMPERATURE...........69-73.
WEATHER.....................MOSTLY SUNNY.
HIGH TEMPERATURE............IN THE LOWER 70S.
WINDS.......................NORTHWEST WINDS 10 TO 20 MPH BECOMING
NORTHEAST 10 TO 15 MPH THIS AFTERNOON.
TONIGHT
SWIM RISK*..................HIGH.
WAVE HEIGHT.................3 TO 5 FEET SUBSIDING TO 2 TO 4 FT.
WEATHER.....................MOSTLY CLEAR.
LOW TEMPERATURE.............IN THE LOWER 60S.
WINDS.......................NORTH WINDS 5 TO 10 MPH, BECOMING WEST
LATE.
MONDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY SUNNY.
HIGH TEMPERATURE............IN THE LOWER 70S.
WINDS.......................WEST WINDS AROUND 5 MPH, BECOMING NORTH
IN THE AFTERNOON.
SWIM RISK OUTLOOK
MONDAY NIGHT
LOW SWIM RISK*.
TUESDAY
LOW SWIM RISK*.
TUESDAY NIGHT
LOW SWIM RISK*.
WEDNESDAY
LOW SWIM RISK*.
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
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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