394
FZUS53 KLOT 210821
SRFLOT
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES
NATIONAL WEATHER SERVICE CHICAGO IL
321 AM CDT MON SEP 21 2026
ILZ006-220830-
LAKE-
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK
321 AM CDT MON SEP 21 2026
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH WEDNESDAY EVENING
TODAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................6 TO 9 FEET.
WATER TEMPERATURE...........60-64.
WEATHER.....................CLOUDY. PATCHY DRIZZLE EARLY IN THE
MORNING. A SLIGHT CHANCE OF SHOWERS IN
THE MORNING.
HIGH TEMPERATURE............IN THE MID 60S.
WINDS.......................NORTHEAST WINDS 15 TO 20 MPH WITH GUSTS
UP TO 30 MPH.
TONIGHT
SWIM RISK*..................HIGH.
WAVE HEIGHT.................5 TO 8 FEET.
WEATHER.....................MOSTLY CLOUDY.
LOW TEMPERATURE.............IN THE UPPER 50S.
WINDS.......................NORTHEAST WINDS 15 TO 20 MPH.
TUESDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................5 TO 8 FEET.
WEATHER.....................MOSTLY CLOUDY.
HIGH TEMPERATURE............IN THE LOWER 60S.
WINDS.......................NORTHEAST WINDS 15 TO 20 MPH.
SWIM RISK OUTLOOK
TUESDAY NIGHT
HIGH SWIM RISK*.
WEDNESDAY
HIGH SWIM RISK*.
WEDNESDAY NIGHT
HIGH SWIM RISK*.
THURSDAY
MODERATE 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
ILZ103-104-220830-
NORTHERN COOK-CENTRAL COOK-
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT
321 AM CDT MON SEP 21 2026
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH WEDNESDAY EVENING
TODAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................6 TO 9 FEET.
WATER TEMPERATURE...........65-69.
WEATHER.....................CLOUDY. AREAS OF DRIZZLE EARLY IN THE
MORNING. A SLIGHT CHANCE OF SHOWERS
UNTIL LATE AFTERNOON.
HIGH TEMPERATURE............IN THE MID 60S.
WINDS.......................NORTHEAST WINDS 15 TO 20 MPH WITH GUSTS
UP TO 30 MPH.
TONIGHT
SWIM RISK*..................HIGH.
WAVE HEIGHT.................5 TO 8 FEET.
WEATHER.....................MOSTLY CLOUDY.
LOW TEMPERATURE.............IN THE UPPER 50S.
WINDS.......................NORTHEAST WINDS 15 TO 20 MPH WITH GUSTS
UP TO 30 MPH.
TUESDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................5 TO 8 FEET.
WEATHER.....................MOSTLY CLOUDY.
HIGH TEMPERATURE............IN THE MID 60S.
WINDS.......................NORTHEAST WINDS 15 TO 20 MPH.
SWIM RISK OUTLOOK
TUESDAY NIGHT
HIGH SWIM RISK*.
WEDNESDAY
HIGH SWIM RISK*.
WEDNESDAY NIGHT
HIGH SWIM RISK*.
THURSDAY
MODERATE 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
INZ001-220830-
LAKE-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
321 AM CDT MON SEP 21 2026
..BEACH HAZARDS STATEMENT IN EFFECT THROUGH WEDNESDAY AFTERNOON
TODAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................5 TO 8 FEET.
WATER TEMPERATURE...........62-66.
WEATHER.....................CLOUDY. AREAS OF DRIZZLE EARLY IN THE
MORNING. A CHANCE OF SHOWERS IN THE
MORNING, THEN A SLIGHT CHANCE OF
SHOWERS EARLY IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE MID 60S.
WINDS.......................NORTHEAST WINDS 15 TO 20 MPH.
TONIGHT
SWIM RISK*..................HIGH.
WAVE HEIGHT.................5 TO 8 FEET.
WEATHER.....................MOSTLY CLOUDY.
LOW TEMPERATURE.............IN THE UPPER 50S.
WINDS.......................NORTHEAST WINDS 15 TO 20 MPH.
TUESDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................4 TO 6 FEET.
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY
CLOUDY.
HIGH TEMPERATURE............IN THE MID 60S.
WINDS.......................NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS
UP TO 25 MPH.
SWIM RISK OUTLOOK
TUESDAY NIGHT
HIGH SWIM RISK*.
WEDNESDAY
HIGH SWIM RISK*.
WEDNESDAY NIGHT
HIGH 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
INZ002-220830-
PORTER-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
321 AM CDT MON SEP 21 2026
..BEACH HAZARDS STATEMENT IN EFFECT UNTIL 10 AM CDT THIS MORNING
TODAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................4 TO 6 FEET.
WATER TEMPERATURE...........62-66.
WEATHER.....................CLOUDY. AREAS OF DRIZZLE EARLY IN THE
MORNING. A CHANCE OF SHOWERS IN THE
MORNING, THEN A SLIGHT CHANCE OF
SHOWERS EARLY IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE MID 60S.
WINDS.......................NORTHEAST WINDS AROUND 15 MPH WITH
GUSTS UP TO 25 MPH.
TONIGHT
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................3 TO 5 FEET.
WEATHER.....................MOSTLY CLOUDY.
LOW TEMPERATURE.............IN THE MID 50S.
WINDS.......................NORTHEAST WINDS 10 TO 15 MPH WITH GUSTS
UP TO 25 MPH.
TUESDAY
SWIM RISK*..................MODERATE.
WAVE HEIGHT.................3 TO 5 FEET.
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY
CLOUDY.
HIGH TEMPERATURE............IN THE MID 60S.
WINDS.......................NORTHEAST WINDS 10 TO 15 MPH.
SWIM RISK OUTLOOK
TUESDAY NIGHT
MODERATE SWIM RISK*.
WEDNESDAY
MODERATE SWIM RISK*.
WEDNESDAY NIGHT
MODERATE 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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