Surf Forecast
Issued by NWS Chicago, IL

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998
FZUS53 KLOT 030844
SRFLOT

Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
344 AM CDT Wed Sep 3 2025

ILZ006-032115-
Lake-
Including the beaches of Illinois Beach State Park
344 AM CDT Wed Sep 3 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Water Temperature...........69-73.
Weather.....................Cloudy. A slight chance of
                            thunderstorms with isolated showers in
                            the morning. Numerous showers and a
                            chance of thunderstorms in the
                            afternoon.
High Temperature............In the mid 70s.
Winds.......................Southwest winds 10 to 15 mph, becoming
                            west late.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly cloudy. A slight chance of
                            thunderstorms with isolated showers
                            early in the evening.
Low Temperature.............In the upper 40s.
Winds.......................Northwest winds 10 to 15 mph with gusts
                            up to 25 mph.

.THURSDAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly sunny, then becoming partly
                            cloudy.
High Temperature............In the upper 60s.
Winds.......................West winds around 10 mph.

.SWIM RISK OUTLOOK...
.THURSDAY NIGHT...Moderate swim risk*.
.FRIDAY...Moderate swim risk*.
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...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

$$

ILZ103-104-032115-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
344 AM CDT Wed Sep 3 2025

.TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Water Temperature...........67-71.
Weather.....................Mostly cloudy. Scattered showers early
                            in the afternoon. A chance of
                            thunderstorms in the afternoon.
                            Numerous showers late.
High Temperature............In the mid 70s.
Winds.......................Southwest winds 10 to 15 mph, becoming
                            west late.

.TONIGHT...
Swim Risk*..................Moderate.
Wave Height.................2 to 4 feet.
Weather.....................Mostly cloudy. Scattered showers and a
                            chance of thunderstorms early in the
                            evening.
Low Temperature.............In the lower 50s.
Winds.......................Northwest winds 15 to 20 mph.

.THURSDAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly sunny.
High Temperature............In the upper 60s.
Winds.......................Northwest winds around 10 mph, becoming
                            west late.

.SWIM RISK OUTLOOK...
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...Low swim risk*.
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...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

$$

INZ001-032115-
Lake-
Including the beaches of Indiana Dunes National Park
344 AM CDT Wed Sep 3 2025

...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS EVENING THROUGH
THURSDAY AFTERNOON...

.TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........70-74.
Weather.....................Mostly cloudy. Scattered showers early
                            in the afternoon. A chance of
                            thunderstorms in the afternoon.
                            Numerous showers late.
High Temperature............In the upper 70s.
Winds.......................Southwest winds 10 to 15 mph, becoming
                            west late.

.TONIGHT...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Mostly cloudy. Numerous showers and a
                            chance of thunderstorms early in the
                            evening, then a slight chance of
                            thunderstorms with isolated showers
                            late in the evening.
Low Temperature.............In the mid 50s.
Winds.......................Northwest winds 15 to 20 mph.

.THURSDAY...
Swim Risk*..................High.
Wave Height.................3 to 5 feet subsiding to 1 to 3 ft in
                            the afternoon.
Weather.....................Mostly sunny.
High Temperature............In the upper 60s.
Winds.......................Northwest winds 5 to 10 mph with gusts
                            up to 20 mph, becoming west late.

.SWIM RISK OUTLOOK...
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...Moderate swim risk*.
.FRIDAY NIGHT...Low swim risk*.
.SATURDAY...Low swim risk*.
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...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

$$

INZ002-032115-
Porter-
Including the beaches of Indiana Dunes National Park
344 AM CDT Wed Sep 3 2025

...BEACH HAZARDS STATEMENT IN EFFECT FROM THIS EVENING THROUGH
THURSDAY AFTERNOON...

.TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3.
Water Temperature...........70-74.
Weather.....................Mostly cloudy. Scattered showers early
                            in the afternoon. A chance of
                            thunderstorms in the afternoon.
                            Numerous showers late.
High Temperature............In the upper 70s.
Winds.......................Southwest winds 10 to 15 mph, becoming
                            west late.

.TONIGHT...
Swim Risk*..................High.
Wave Height.................4 to 6 feet.
Weather.....................Mostly cloudy. Numerous showers and a
                            chance of thunderstorms in the evening,
                            then isolated showers after midnight.
Low Temperature.............In the upper 50s.
Winds.......................Northwest winds 15 to 20 mph with gusts
                            up to 30 mph.

.THURSDAY...
Swim Risk*..................High.
Wave Height.................4 to 6 feet subsiding to 2 to 4 ft in
                            the afternoon.
Weather.....................Mostly sunny.
High Temperature............In the mid 60s.
Winds.......................Northwest winds 10 to 15 mph, becoming
                            west 5 to 10 mph late.

.SWIM RISK OUTLOOK...
.THURSDAY NIGHT...Low swim risk*.
.FRIDAY...High swim risk*.
.FRIDAY NIGHT...Moderate swim risk*.
.SATURDAY...Low swim risk*.
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...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


$$