662
FZUS53 KLOT 312041
SRFLOT
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES
NATIONAL WEATHER SERVICE CHICAGO IL
341 PM CDT FRI JUL 31 2026
ILZ006-012045-
LAKE-
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK
341 PM CDT FRI JUL 31 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM 3 AM CDT SATURDAY THROUGH
MONDAY MORNING...
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WATER TEMPERATURE...........69-73.
WEATHER.....................CLOUDY. SHOWERS.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................SOUTHEAST WINDS 10 TO 15 MPH.
TONIGHT
SWIM RISK*..................HIGH.
WAVE HEIGHT.................4 TO 7 FEET.
WEATHER.....................CLOUDY. SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE LATE
EVENING AND OVERNIGHT.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................BREEZY. SOUTH WINDS 10 TO 15 MPH,
BECOMING EAST 15 TO 25 MPH IN THE LATE
EVENING AND OVERNIGHT.
SATURDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................6 TO 9 FEET.
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF
THUNDERSTORMS.
HIGH TEMPERATURE............AROUND 70.
WINDS.......................BREEZY. EAST WINDS 20 TO 25 MPH,
BECOMING NORTHEAST WITH GUSTS
UP TO 30 MPH.
SWIM RISK OUTLOOK
SATURDAY NIGHT
HIGH SWIM RISK*.
SUNDAY
HIGH SWIM RISK*.
SUNDAY NIGHT
HIGH SWIM RISK*.
MONDAY
MODERATE 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
ILZ103-104-012045-
NORTHERN COOK-CENTRAL COOK-
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT
341 PM CDT FRI JUL 31 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM 3 AM CDT SATURDAY THROUGH
MONDAY MORNING...
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WATER TEMPERATURE...........70-74.
WEATHER.....................CLOUDY. SHOWERS.
HIGH TEMPERATURE............AROUND 80.
WINDS.......................SOUTH WINDS 10 TO 15 MPH.
TONIGHT
SWIM RISK*..................HIGH.
WAVE HEIGHT.................4 TO 7 FEET.
WEATHER.....................CLOUDY. SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE LATE
EVENING AND OVERNIGHT.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................BREEZY. SOUTH WINDS 10 TO 15 MPH,
BECOMING SOUTHEAST 15 TO 25 MPH IN THE
LATE EVENING AND OVERNIGHT.
SATURDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................6 TO 9 FEET.
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF
THUNDERSTORMS.
HIGH TEMPERATURE............IN THE LOWER 70S.
WINDS.......................WINDY. EAST WINDS 20 TO 25 MPH,
BECOMING NORTHEAST 20 TO 30 MPH LATE.
SWIM RISK OUTLOOK
SATURDAY NIGHT
HIGH SWIM RISK*.
SUNDAY
HIGH SWIM RISK*.
SUNDAY NIGHT
HIGH SWIM RISK*.
MONDAY
HIGH 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
INZ001-012045-
LAKE-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
341 PM CDT FRI JUL 31 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY MORNING THROUGH
MONDAY MORNING...
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WATER TEMPERATURE...........71-75.
WEATHER.....................CLOUDY. SHOWERS.
HIGH TEMPERATURE............IN THE LOWER 80S.
WINDS.......................SOUTH WINDS 5 TO 10 MPH.
TONIGHT
SWIM RISK*..................HIGH.
WAVE HEIGHT.................3 TO 5 FEET.
WEATHER.....................CLOUDY. SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE LATE
EVENING AND OVERNIGHT.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................SOUTH WINDS 10 TO 15 MPH, BECOMING
SOUTHEAST 15 TO 20 MPH IN THE
LATE EVENING AND OVERNIGHT.
SATURDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................5 TO 8 FEET.
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF
THUNDERSTORMS.
HIGH TEMPERATURE............IN THE LOWER 70S.
WINDS.......................BREEZY. EAST WINDS 15 TO 20 MPH,
BECOMING NORTHEAST 15 TO 25 MPH LATE.
SWIM RISK OUTLOOK
SATURDAY NIGHT
HIGH SWIM RISK*.
SUNDAY
HIGH SWIM RISK*.
SUNDAY NIGHT
HIGH SWIM RISK*.
MONDAY
HIGH 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
INZ002-012045-
PORTER-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
341 PM CDT FRI JUL 31 2026
...BEACH HAZARDS STATEMENT IN EFFECT FROM SATURDAY MORNING THROUGH
MONDAY MORNING...
REST OF TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WATER TEMPERATURE...........71-75.
WEATHER.....................CLOUDY. SHOWERS.
HIGH TEMPERATURE............AROUND 80.
WINDS.......................SOUTH WINDS AROUND 10 MPH WITH GUSTS UP
TO 20 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................CLOUDY. SHOWERS. A CHANCE OF
THUNDERSTORMS IN THE LATE
EVENING AND OVERNIGHT.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................SOUTH WINDS AROUND 10 MPH, BECOMING
SOUTHEAST 15 TO 20 MPH IN THE LATE
EVENING AND OVERNIGHT.
SATURDAY
SWIM RISK*..................HIGH.
WAVE HEIGHT.................4 TO 6 FEET.
WEATHER.....................CLOUDY. SHOWERS AND A CHANCE OF
THUNDERSTORMS.
HIGH TEMPERATURE............IN THE LOWER 70S.
WINDS.......................EAST WINDS 15 TO 20 MPH WITH GUSTS
TO 25 MPH, BECOMING NORTHEAST LATE.
SWIM RISK OUTLOOK
SATURDAY NIGHT
HIGH SWIM RISK*.
SUNDAY
HIGH SWIM RISK*.
SUNDAY NIGHT
HIGH SWIM RISK*.
MONDAY
HIGH 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
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