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FZUS53 KLOT 290822
SRFLOT

Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
322 AM CDT Mon Sep 29 2025

ILZ006-292145-
Lake-
Including the beaches of Illinois Beach State Park
322 AM CDT Mon Sep 29 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot building to 1 to 3 feet
                            in the afternoon.
Water Temperature...........61-71.
Weather.....................Mostly sunny.
High Temperature............In the upper 70s.
Winds.......................Southeast winds around 5 mph, becoming
                            east around 10 mph in the afternoon.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet subsiding to around 1 foot.
Weather.....................Mostly clear.
Low Temperature.............In the lower 60s.
Winds.......................Northeast winds around 5 mph, becoming
                            north after midnight.

.TUESDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot building to 1 to 3 feet
                            in the afternoon.
Weather.....................Mostly sunny.
High Temperature............In the mid 70s.
Winds.......................Northeast winds around 5 mph increasing
                            to 10 to 15 mph late in the afternoon.

.SWIM RISK OUTLOOK...
.TUESDAY NIGHT...High swim risk*.

Note: The final beach forecast of the 2025 season will be issued on
Tuesday Sep. 30.

&&

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

$$

ILZ103-104-292145-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
322 AM CDT Mon Sep 29 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot building to 1 to 3 feet
                            in the afternoon.
Water Temperature...........57-67.
Weather.....................Mostly sunny.
High Temperature............In the upper 70s.
Winds.......................Southeast winds around 5 mph, becoming
                            east around 10 mph in the afternoon.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet subsiding to around 1 foot.
Weather.....................Mostly clear.
Low Temperature.............In the lower 60s.
Winds.......................Northeast winds 5 to 10 mph, becoming
                            around 5 mph late.

.TUESDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot building to 1 to 3 feet
                            in the afternoon.
Weather.....................Mostly sunny.
High Temperature............In the mid 70s.
Winds.......................Northeast winds around 5 mph increasing
                            to 10 to 15 mph late in the afternoon.

.SWIM RISK OUTLOOK...
.TUESDAY NIGHT...Moderate swim risk*.

Note: The final beach forecast of the 2025 season will be issued on
Tuesday Sep. 30.

&&

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

$$

INZ001-292145-
Lake-
Including the beaches of Indiana Dunes National Park
322 AM CDT Mon Sep 29 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot building to 1 to 3 feet
                            in the afternoon.
Water Temperature...........65-69.
Weather.....................Mostly sunny.
High Temperature............In the upper 70s.
Winds.......................Southeast winds around 5 mph, becoming
                            northeast around 10 mph in the afternoon.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet subsiding to around 1 foot.
Weather.....................Mostly clear.
Low Temperature.............In the lower 60s.
Winds.......................Northeast winds 5 to 10 mph.

.TUESDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot building to 1 to 3 feet
                            in the afternoon.
Weather.....................Mostly sunny.
High Temperature............In the mid 70s.
Winds.......................Northeast winds around 5 mph increasing
                            to 10 to 15 mph late in the afternoon.

.SWIM RISK OUTLOOK...
.TUESDAY NIGHT...Moderate swim risk*.

Note: The final beach forecast of the 2025 season will be issued on
Tuesday Sep. 30.

&&

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

$$

INZ002-292145-
Porter-
Including the beaches of Indiana Dunes National Park
322 AM CDT Mon Sep 29 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot building to 1 to 3 feet
                            in the afternoon.
Water Temperature...........65-69.
Weather.....................Sunny.
High Temperature............In the upper 70s.
Winds.......................Southeast winds around 5 mph, becoming
                            northeast around 10 mph in the afternoon.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet subsiding to around 1 foot.
Weather.....................Mostly clear.
Low Temperature.............Around 60.
Winds.......................Northeast winds 5 to 10 mph.

.TUESDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot building to 1 to 3 feet
                            in the afternoon.
Weather.....................Mostly sunny.
High Temperature............In the mid 70s.
Winds.......................Northeast winds around 5 mph increasing
                            to 10 to 15 mph late in the afternoon.

.SWIM RISK OUTLOOK...
.TUESDAY NIGHT...Low swim risk*.

Note: The final beach forecast of the 2025 season will be issued on
Tuesday Sep. 30.

&&

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


$$