Surf Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
231
FZUS53 KLOT 231523
SRFLOT
Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
1023 AM CDT Sat Aug 23 2025
ILZ006-232200-
Lake-
Including the beaches of Illinois Beach State Park
1023 AM CDT Sat Aug 23 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........71-75.
Weather.....................Mostly cloudy, then becoming partly
cloudy.
High Temperature............In the lower 80s.
Winds.......................West winds 10 to 15 mph becoming
northwest 15 to 25 mph in the afternoon.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly clear.
Low Temperature.............In the upper 50s.
Winds.......................Northwest winds 10 to 20 mph.
.SUNDAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Sunny, then becoming partly cloudy.
High Temperature............In the lower 70s.
Winds.......................Northwest winds 10 to 20 mph.
.SWIM RISK OUTLOOK...
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...Low swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...Low swim risk*.
.TUESDAY NIGHT...Low swim risk*.
.WEDNESDAY...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
$$
ILZ103-104-232200-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
1023 AM CDT Sat Aug 23 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........71-75.
Weather.....................Mostly cloudy, then becoming partly
cloudy. A slight chance of showers late
in the morning. A slight chance of
showers and thunderstorms late.
High Temperature............In the lower 80s.
Winds.......................West winds 10 to 15 mph becoming
northwest 15 to 25 mph in the afternoon.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly clear.
Low Temperature.............In the upper 50s.
Winds.......................Northwest winds 10 to 20 mph.
.SUNDAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Sunny, then becoming partly cloudy.
High Temperature............In the mid 70s.
Winds.......................Northwest winds 10 to 20 mph.
.SWIM RISK OUTLOOK...
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...Low swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...Low swim risk*.
.TUESDAY NIGHT...Low swim risk*.
.WEDNESDAY...Low swim risk*.
&&
Swim Risk Category
* Low Risk - Large waves and dangerous currents are not expected,
however dangerous currents may exist at any time near piers,
breakwalls, and river outlets.
* Moderate Risk - Breaking waves and currents are expected. Stay away
from dangerous areas like piers, breakwalls, and river outlets.
Always have a flotation device with you in the water.
* High Risk - Life-threatening waves and currents are expected. Stay
out of the water and stay away from dangerous areas like piers and
breakwalls.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/lot
$$
INZ001-232200-
Lake-
Including the beaches of Indiana Dunes National Park
1023 AM CDT Sat Aug 23 2025
.REST OF TODAY...
Swim Risk*..................Moderate.
Wave Height.................1 to 3 feet building to 2 to 4 feet this afternoon.
Water Temperature...........69-73.
Weather.....................Mostly cloudy, then becoming partly
cloudy. A slight chance of showers late
in the morning. A slight chance of
showers and thunderstorms late.
High Temperature............In the lower 80s.
Winds.......................West winds 10 to 15 mph becoming
northwest 15 to 25 mph in the afternoon.
.TONIGHT...
Swim Risk*..................Moderate.
Wave Height.................2 to 4 feet.
Weather.....................Mostly clear.
Low Temperature.............In the lower 60s.
Winds.......................Northwest winds 10 to 20 mph.
.SUNDAY...
Swim Risk*..................Moderate.
Wave Height.................2 to 4 feet.
Weather.....................Sunny, then becoming partly cloudy.
High Temperature............In the mid 70s.
Winds.......................Northwest winds 10 to 20 mph.
.SWIM RISK OUTLOOK...
.SUNDAY NIGHT...Moderate swim risk*.
.MONDAY...Moderate swim risk*.
.MONDAY NIGHT...Moderate swim risk*.
.TUESDAY...Moderate swim risk*.
.TUESDAY NIGHT...Moderate swim risk*.
.WEDNESDAY...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
$$
INZ002-232200-
Porter-
Including the beaches of Indiana Dunes National Park
1023 AM CDT Sat Aug 23 2025
...BEACH HAZARDS STATEMENT IN EFFECT FROM 6 PM CDT THIS EVENING
THROUGH SUNDAY MORNING...
.REST OF TODAY...
Swim Risk*..................Moderate.
Wave Height.................1 to 3 feet building to 2 to 4 feet this afternoon.
Water Temperature...........69-73.
Weather.....................Mostly cloudy, then becoming partly
cloudy. A slight chance of showers late
in the morning. A slight chance of
showers and thunderstorms late.
High Temperature............In the lower 80s.
Winds.......................West winds 10 to 20 mph, becoming
northwest 15 to 25 mph this afternoon.
.TONIGHT...
Swim Risk*..................High.
Wave Height.................3 to 5 feet subsiding to 2 to 4 feet.
Weather.....................Mostly clear.
Low Temperature.............In the mid 60s.
Winds.......................Northwest winds 10 to 20 mph.
.SUNDAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet.
Weather.....................Mostly sunny, then becoming partly
cloudy.
High Temperature............In the lower 70s.
Winds.......................Northwest winds 10 to 20 mph.
.SWIM RISK OUTLOOK...
.SUNDAY NIGHT...High swim risk*.
.MONDAY...High swim risk*.
.MONDAY NIGHT...High swim risk*.
.TUESDAY...Moderate swim risk*.
.TUESDAY NIGHT...Moderate swim risk*.
.WEDNESDAY...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
$$