926
FZUS53 KLOT 170902
SRFLOT
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES
NATIONAL WEATHER SERVICE CHICAGO IL
402 AM CDT MON AUG 17 2026
ILZ006-180915-
LAKE-
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK
402 AM CDT MON AUG 17 2026
TODAY
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE LATE MORNING AND AFTERNOON.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTH WINDS 10 TO 15 MPH MPH BECOMING
NORTHEAST. GUSTS TO AROUND 20 MPH IN
THE MORNING.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY CLEAR.
LOW TEMPERATURE.............IN THE MID 60S.
WINDS.......................SOUTH WINDS 5 TO 10 MPH, BECOMING
SOUTHWEST AFTER MIDNIGHT.
TUESDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............AROUND 80.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH.
SWIM RISK OUTLOOK
TUESDAY NIGHT
LOW SWIM RISK*.
WEDNESDAY
LOW SWIM RISK*.
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
LOW SWIM RISK*.
THURSDAY NIGHT
LOW SWIM RISK*.
FRIDAY
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
ILZ103-104-180915-
NORTHERN COOK-CENTRAL COOK-
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT
402 AM CDT MON AUG 17 2026
TODAY
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................2 TO 4 FEET SUBSIDING TO 1 TO 3 FEET.
WATER TEMPERATURE...........70-74.
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE LATE MORNING AND AFTERNOON.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTH WINDS 10 TO 15 MPH BECOMING
NORTHEAST. GUSTS TO AROUND 20 MPH IN
THE MORNING.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY CLEAR.
LOW TEMPERATURE.............IN THE MID 60S.
WINDS.......................SOUTHEAST WINDS AROUND 5 MPH, BECOMING
SOUTHWEST LATE.
TUESDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE LOWER 80S.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH.
SWIM RISK OUTLOOK
TUESDAY NIGHT
LOW SWIM RISK*.
WEDNESDAY
LOW SWIM RISK*.
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
LOW SWIM RISK*.
THURSDAY NIGHT
LOW SWIM RISK*.
FRIDAY
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
INZ001-180915-
LAKE-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
402 AM CDT MON AUG 17 2026
TODAY
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................2 TO 4 FEET.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE LATE MORNING AND AFTERNOON.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTH WINDS 10 TO 15 MPH BECOMING
NORTHEAST. GUSTS TO AROUND 20 MPH IN
THE MORNING.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY CLEAR.
LOW TEMPERATURE.............IN THE MID 60S.
WINDS.......................EAST WINDS AROUND 5 MPH, BECOMING
SOUTHWEST IN THE LATE EVENING AND
OVERNIGHT.
TUESDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............AROUND 80.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH.
SWIM RISK OUTLOOK
TUESDAY NIGHT
LOW SWIM RISK*.
WEDNESDAY
LOW SWIM RISK*.
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
LOW SWIM RISK*.
THURSDAY NIGHT
LOW SWIM RISK*.
FRIDAY
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
INZ002-180915-
PORTER-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
402 AM CDT MON AUG 17 2026
TODAY
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................2 TO 4 FEET.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS IN
THE LATE MORNING AND EARLY AFTERNOON.
HIGH TEMPERATURE............IN THE MID 70S.
WINDS.......................NORTH WINDS 10 TO 15 MPH. GUSTS TO
AROUND 20 MPH IN THE MORNING.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY CLEAR.
LOW TEMPERATURE.............IN THE MID 60S.
WINDS.......................NORTH WINDS AROUND 5 MPH, BECOMING
SOUTHWEST IN THE LATE EVENING AND
OVERNIGHT.
TUESDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................SOUTHWEST WINDS 5 TO 10 MPH.
SWIM RISK OUTLOOK
TUESDAY NIGHT
LOW SWIM RISK*.
WEDNESDAY
LOW SWIM RISK*.
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
LOW SWIM RISK*.
THURSDAY NIGHT
LOW SWIM RISK*.
FRIDAY
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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