809
FZUS53 KLOT 220831
SRFLOT

Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
331 AM CDT Tue Jul 22 2025

ILZ006-222115-
Lake-
Including the beaches of Illinois Beach State Park
331 AM CDT Tue Jul 22 2025

.TODAY...
Swim Risk*..................Moderate.
Wave Height.................2 to 4 feet.
Water Temperature...........68-72.
Weather.....................Partly cloudy.
High Temperature............In the lower 80s.
Winds.......................Southeast winds 10 to 15 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Partly cloudy.
Low Temperature.............In the lower 70s.
Winds.......................Southeast winds around 10 mph with
                            gusts up to 20 mph, becoming south
                            after midnight.

.WEDNESDAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Partly cloudy, then becoming mostly
                            sunny.
High Temperature............In the lower 90s.
Winds.......................South winds 10 to 15 mph.

.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

$$

ILZ103-104-222115-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
331 AM CDT Tue Jul 22 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........69-73.
Weather.....................Partly cloudy, then becoming mostly
                            sunny.
High Temperature............In the mid 80s.
Winds.......................Southeast winds 10 to 15 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Partly cloudy.
Low Temperature.............In the lower 70s.
Winds.......................Southeast winds 10 to 15 mph, becoming
                            south after midnight.

.WEDNESDAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Partly cloudy.
High Temperature............In the mid 90s.
Winds.......................South winds 10 to 15 mph.

.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

$$

INZ001-222115-
Lake-
Including the beaches of Indiana Dunes National Park
331 AM CDT Tue Jul 22 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Water Temperature...........68-72.
Weather.....................Partly cloudy, then becoming mostly
                            sunny.
High Temperature............In the mid 80s.
Winds.......................Southeast winds 5 to 10 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Mostly clear.
Low Temperature.............Around 70.
Winds.......................Southeast winds 5 to 10 mph.

.WEDNESDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Partly cloudy, then becoming mostly
                            sunny.
High Temperature............In the mid 90s.
Winds.......................South winds around 10 mph.

.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

$$

INZ002-222115-
Porter-
Including the beaches of Indiana Dunes National Park
331 AM CDT Tue Jul 22 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Water Temperature...........68-72.
Weather.....................Partly cloudy, then becoming mostly
                            sunny.
High Temperature............In the mid 80s.
Winds.......................Southeast winds 5 to 10 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly clear.
Low Temperature.............In the upper 60s.
Winds.......................Southeast winds 5 to 10 mph.

.WEDNESDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly sunny.
High Temperature............In the lower 90s.
Winds.......................South winds around 10 mph.

.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


$$