603
FZUS53 KLOT 011950
SRFLOT

Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
250 PM CDT Mon Sep 1 2025

ILZ006-020930-
Lake-
Including the beaches of Illinois Beach State Park
250 PM CDT Mon Sep 1 2025

.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Water Temperature...........69-73.
Weather.....................Mostly sunny.
High Temperature............In the mid 70s.
Winds.......................East winds around 10 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Mostly clear. Patchy fog late.
Low Temperature.............In the upper 50s.
Winds.......................Northeast winds 5 to 10 mph, becoming
                            north late.

.TUESDAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Mostly sunny. Patchy fog early in the
                            morning.
High Temperature............In the upper 70s.
Winds.......................North winds around 5 mph, becoming east
                            around 10 mph in the afternoon.

.SWIM RISK OUTLOOK...
.TUESDAY NIGHT...Low swim risk*.
.WEDNESDAY...Low swim risk*.
.WEDNESDAY NIGHT...Low swim risk*.
.THURSDAY...Low swim risk*.
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...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

$$

ILZ103-104-020930-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
250 PM CDT Mon Sep 1 2025

.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Water Temperature...........67-71.
Weather.....................Mostly sunny.
High Temperature............In the mid 70s.
Winds.......................Northeast winds 10 to 15 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Mostly clear.
Low Temperature.............In the mid 60s.
Winds.......................Northeast winds 5 to 10 mph.

.TUESDAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Mostly sunny.
High Temperature............In the upper 70s.
Winds.......................North winds around 5 mph, becoming
                            northeast around 10 mph in the
                            afternoon.

.SWIM RISK OUTLOOK...
.TUESDAY NIGHT...Low swim risk*.
.WEDNESDAY...Low swim risk*.
.WEDNESDAY NIGHT...Low swim risk*.
.THURSDAY...Low swim risk*.
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...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

$$

INZ001-020930-
Lake-
Including the beaches of Indiana Dunes National Park
250 PM CDT Mon Sep 1 2025

.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........70-74.
Weather.....................Mostly sunny.
High Temperature............In the mid 70s.
Winds.......................Northeast winds 10 to 15 mph.

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

.TUESDAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Mostly sunny. Patchy fog early in the
                            morning.
High Temperature............In the upper 70s.
Winds.......................Northeast winds around 5 mph,
                            increasing to around 10 mph in the
                            afternoon.

.SWIM RISK OUTLOOK...
.TUESDAY NIGHT...Low swim risk*.
.WEDNESDAY...Low swim risk*.
.WEDNESDAY NIGHT...Moderate swim risk*.
.THURSDAY...Moderate swim risk*.
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...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

$$

INZ002-020930-
Porter-
Including the beaches of Indiana Dunes National Park
250 PM CDT Mon Sep 1 2025

.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........70-74.
Weather.....................Mostly sunny.
High Temperature............In the mid 70s.
Winds.......................North winds 10 to 15 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly clear. Patchy fog late.
Low Temperature.............Around 60.
Winds.......................Northeast winds 5 to 10 mph, becoming
                            east after midnight.

.TUESDAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Mostly sunny. Patchy fog early in the
                            morning.
High Temperature............In the mid 70s.
Winds.......................South winds around 5 mph, becoming
                            north around 10 mph in the afternoon.

.SWIM RISK OUTLOOK...
.TUESDAY NIGHT...Low swim risk*.
.WEDNESDAY...Low swim risk*.
.WEDNESDAY NIGHT...High swim risk*.
.THURSDAY...High swim risk*.
.THURSDAY NIGHT...Moderate swim risk*.
.FRIDAY...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


$$