992
FZUS53 KLOT 130842
SRFLOT
SURF ZONE FORECAST FOR LAKE MICHIGAN BEACHES
NATIONAL WEATHER SERVICE CHICAGO IL
342 AM CDT THU AUG 13 2026
ILZ006-140845-
LAKE-
INCLUDING THE BEACHES OF ILLINOIS BEACH STATE PARK
342 AM CDT THU AUG 13 2026
TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WATER TEMPERATURE...........72-76.
WEATHER.....................MOSTLY CLOUDY. AREAS OF FOG EARLY IN
THE MORNING. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE
AFTERNOON.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................EAST WINDS 5 TO 10 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WEATHER.....................MOSTLY CLOUDY. A SLIGHT CHANCE OF
THUNDERSTORMS EARLY IN THE EVENING. A
CHANCE OF SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS LATE.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................EAST WINDS 10 TO 15 MPH.
FRIDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS. A
SLIGHT CHANCE OF THUNDERSTORMS LATE.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................EAST WINDS 10 TO 15 MPH.
SWIM RISK OUTLOOK
FRIDAY NIGHT
MODERATE SWIM RISK*.
SATURDAY
MODERATE SWIM RISK*.
SATURDAY NIGHT
LOW SWIM RISK*.
SUNDAY
LOW SWIM RISK*.
SUNDAY NIGHT
LOW SWIM RISK*.
MONDAY
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
ILZ103-104-140845-
NORTHERN COOK-CENTRAL COOK-
INCLUDING THE BEACHES OF CHICAGO PARK DISTRICT
342 AM CDT THU AUG 13 2026
TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY. PATCHY FOG EARLY IN THE
MORNING. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................EAST WINDS 5 TO 10 MPH.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS AND
A SLIGHT CHANCE OF THUNDERSTORMS.
LOW TEMPERATURE.............AROUND 70.
WINDS.......................EAST WINDS 10 TO 15 MPH.
FRIDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 3 FEET.
WEATHER.....................MOSTLY CLOUDY. A SLIGHT CHANCE OF
THUNDERSTORMS IN THE MORNING. A CHANCE
OF SHOWERS. A SLIGHT CHANCE OF
THUNDERSTORMS LATE.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................EAST WINDS AROUND 10 MPH.
SWIM RISK OUTLOOK
FRIDAY NIGHT
MODERATE SWIM RISK*.
SATURDAY
MODERATE SWIM RISK*.
SATURDAY NIGHT
LOW SWIM RISK*.
SUNDAY
LOW SWIM RISK*.
SUNDAY NIGHT
LOW SWIM RISK*.
MONDAY
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
INZ001-140845-
LAKE-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
342 AM CDT THU AUG 13 2026
TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY. PATCHY DENSE FOG EARLY
IN THE MORNING. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................SOUTHEAST WINDS AROUND 5 MPH, BECOMING
NORTHEAST IN THE AFTERNOON.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WEATHER.....................CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................EAST WINDS 5 TO 10 MPH.
FRIDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................1 TO 2 FEET.
WEATHER.....................MOSTLY CLOUDY. SHOWERS LIKELY IN THE
MORNING. A SLIGHT CHANCE OF
THUNDERSTORMS. A CHANCE OF SHOWERS IN
THE AFTERNOON.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................EAST WINDS 5 TO 10 MPH.
SWIM RISK OUTLOOK
FRIDAY NIGHT
LOW SWIM RISK*.
SATURDAY
LOW SWIM RISK*.
SATURDAY NIGHT
LOW SWIM RISK*.
SUNDAY
LOW SWIM RISK*.
SUNDAY NIGHT
LOW SWIM RISK*.
MONDAY
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
INZ002-140845-
PORTER-
INCLUDING THE BEACHES OF INDIANA DUNES NATIONAL PARK
342 AM CDT THU AUG 13 2026
TODAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WATER TEMPERATURE...........71-75.
WEATHER.....................MOSTLY CLOUDY. AREAS OF DENSE FOG EARLY
IN THE MORNING. PATCHY FOG LATE IN THE
MORNING. A CHANCE OF SHOWERS AND
THUNDERSTORMS IN THE AFTERNOON.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................SOUTHEAST WINDS AROUND 5 MPH, BECOMING
NORTHEAST IN THE AFTERNOON.
TONIGHT
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................CLOUDY. A CHANCE OF SHOWERS AND A
SLIGHT CHANCE OF THUNDERSTORMS IN THE
EVENING, THEN SHOWERS LIKELY AND A
CHANCE OF THUNDERSTORMS AFTER MIDNIGHT.
LOW TEMPERATURE.............IN THE UPPER 60S.
WINDS.......................EAST WINDS 5 TO 10 MPH.
FRIDAY
SWIM RISK*..................LOW.
WAVE HEIGHT.................AROUND 1 FOOT.
WEATHER.....................MOSTLY CLOUDY. A CHANCE OF SHOWERS
UNTIL LATE AFTERNOON. A SLIGHT CHANCE
OF THUNDERSTORMS. A SLIGHT CHANCE OF
SHOWERS LATE.
HIGH TEMPERATURE............IN THE UPPER 70S.
WINDS.......................EAST WINDS 5 TO 10 MPH.
SWIM RISK OUTLOOK
FRIDAY NIGHT
LOW SWIM RISK*.
SATURDAY
LOW SWIM RISK*.
SATURDAY NIGHT
LOW SWIM RISK*.
SUNDAY
LOW SWIM RISK*.
SUNDAY NIGHT
LOW SWIM RISK*.
MONDAY
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
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page