940
FZUS53 KLOT 110815
SRFLOT
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES
NATIONAL WEATHER SERVICE CHICAGO IL
315 AM CDT TUE AUG 11 2026
ILZ006-120815-
LAKE-
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK
315 AM CDT TUE AUG 11 2026
TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING,
THEN SHOWERS AND THUNDERSTORMS IN THE
LATE MORNING AND EARLY AFTERNOON. A
CHANCE OF SHOWERS AND THUNDERSTORMS
LATE.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................SOUTHEAST WINDS 5 TO 10 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................EAST WINDS AROUND 5 MPH, BECOMING
SOUTHWEST LATE.
WEDNESDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 FOOT OR LESS.
WEATHER.....................MOSTLY CLOUDY, THEN BECOMING PARTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS LATE IN THE MORNING. A
CHANCE OF SHOWERS AND THUNDERSTORMS
EARLY IN THE AFTERNOON, THEN A SLIGHT
CHANCE OF SHOWERS AND THUNDERSTORMS
LATE.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................WEST WINDS AROUND 5 MPH, BECOMING
SOUTHEAST AROUND 5 MPH IN THE LATE
MORNING AND EARLY AFTERNOON, THEN
BECOMING EAST LATE.
SWIM RISK OUTLOOK
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
LOW SWIM RISK*.
THURSDAY NIGHT
HIGH SWIM RISK*.
FRIDAY
HIGH SWIM RISK*.
FRIDAY NIGHT
MODERATE SWIM RISK*.
SATURDAY
HIGH 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
ILZ103-104-120815-
NORTHERN COOK-CENTRAL COOK-
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT
315 AM CDT TUE AUG 11 2026
TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WATER TEMPERATURE...........70-74.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING,
THEN SHOWERS AND THUNDERSTORMS IN THE
LATE MORNING AND EARLY AFTERNOON. A
CHANCE OF SHOWERS AND THUNDERSTORMS
LATE.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................SOUTHEAST WINDS 10 TO 15 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING.
LOW TEMPERATURE.............IN THE LOWER 70S.
WINDS.......................EAST WINDS AROUND 5 MPH.
WEDNESDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 FOOT OR LESS.
WEATHER.....................MOSTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE
MORNING. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE AFTERNOON,
THEN A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS LATE.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................NORTH WINDS AROUND 5 MPH, BECOMING
SOUTHEAST IN THE LATE MORNING AND
AFTERNOON.
SWIM RISK OUTLOOK
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
LOW SWIM RISK*.
THURSDAY NIGHT
MODERATE SWIM RISK*.
FRIDAY
HIGH SWIM RISK*.
FRIDAY NIGHT
MODERATE SWIM RISK*.
SATURDAY
MODERATE 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
INZ001-120815-
LAKE-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
315 AM CDT TUE AUG 11 2026
TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING,
THEN SHOWERS AND THUNDERSTORMS IN THE
LATE MORNING AND EARLY AFTERNOON. A
CHANCE OF SHOWERS AND THUNDERSTORMS
LATE.
HIGH TEMPERATURE............IN THE LOWER 80S.
WINDS.......................SOUTH WINDS 10 TO 15 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 FOOT OR LESS.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING.
LOW TEMPERATURE.............AROUND 70.
WINDS.......................EAST WINDS AROUND 5 MPH.
WEDNESDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 FOOT OR LESS.
WEATHER.....................MOSTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE
MORNING. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE LOWER 80S.
WINDS.......................EAST WINDS AROUND 5 MPH, BECOMING SOUTH
IN THE LATE MORNING AND EARLY
AFTERNOON, THEN BECOMING WEST LATE.
SWIM RISK OUTLOOK
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
LOW SWIM RISK*.
THURSDAY NIGHT
LOW SWIM RISK*.
FRIDAY
MODERATE SWIM RISK*.
FRIDAY NIGHT
MODERATE SWIM RISK*.
SATURDAY
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
INZ002-120815-
PORTER-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
315 AM CDT TUE AUG 11 2026
TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE MORNING,
THEN SHOWERS AND THUNDERSTORMS IN THE
LATE MORNING AND EARLY AFTERNOON. A
CHANCE OF SHOWERS AND THUNDERSTORMS
LATE.
HIGH TEMPERATURE............IN THE LOWER 80S.
WINDS.......................SOUTH WINDS 5 TO 10 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 FOOT OR LESS.
WEATHER.....................PARTLY CLOUDY, THEN BECOMING MOSTLY
CLOUDY. A SLIGHT CHANCE OF SHOWERS AND
THUNDERSTORMS EARLY IN THE EVENING.
LOW TEMPERATURE.............AROUND 70.
WINDS.......................SOUTHEAST WINDS AROUND 5 MPH.
WEDNESDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 FOOT OR LESS.
WEATHER.....................MOSTLY CLOUDY. A SLIGHT CHANCE OF
SHOWERS AND THUNDERSTORMS LATE IN THE
MORNING. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE LOWER 80S.
WINDS.......................SOUTHEAST WINDS AROUND 5 MPH, BECOMING
SOUTH LATE IN THE MORNING, THEN
BECOMING NORTHWEST IN THE AFTERNOON.
SWIM RISK OUTLOOK
WEDNESDAY NIGHT
LOW SWIM RISK*.
THURSDAY
LOW SWIM RISK*.
THURSDAY NIGHT
LOW SWIM RISK*.
FRIDAY
LOW SWIM RISK*.
FRIDAY NIGHT
LOW SWIM RISK*.
SATURDAY
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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