522
FZUS53 KLOT 181959
SRFLOT

Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
259 PM CDT Fri Jul 18 2025

ILZ006-190915-
Lake-
Including the beaches of Illinois Beach State Park
259 PM CDT Fri Jul 18 2025

.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........69-73.
Weather.....................Partly cloudy.
High Temperature............In the mid 70s.
Winds.......................East winds 5 to 10 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly clear, then becoming mostly
                            cloudy.
Low Temperature.............In the upper 60s.
Winds.......................Southeast winds around 5 mph, becoming
                            south late.

.SATURDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly cloudy. Showers likely and a
                            chance of thunderstorms.
High Temperature............In the lower 80s.
Winds.......................Southwest winds 5 to 10 mph, becoming
                            west late.

.SWIM RISK OUTLOOK...
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Moderate swim risk*.
.SUNDAY NIGHT...Moderate swim risk*.
.MONDAY...Moderate swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...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

$$

ILZ103-104-190915-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
259 PM CDT Fri Jul 18 2025

.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........69-73.
Weather.....................Partly cloudy.
High Temperature............In the mid 70s.
Winds.......................East winds 5 to 10 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Partly cloudy, then becoming mostly
                            cloudy.
Low Temperature.............Around 70.
Winds.......................Southeast winds around 5 mph, becoming
                            south late.

.SATURDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly cloudy. Showers likely and a
                            chance of thunderstorms.
High Temperature............In the mid 80s.
Winds.......................Southwest winds 5 to 10 mph with gusts
                            up to 20 mph, becoming west with gusts
                            up to 20 mph late.

.SWIM RISK OUTLOOK...
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Moderate swim risk*.
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...Moderate swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...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

$$

INZ001-190915-
Lake-
Including the beaches of Indiana Dunes National Park
259 PM CDT Fri Jul 18 2025

.REST OF TODAY...
Swim Risk*..................Moderate.
Wave Height.................2 to 3 feet.
Water Temperature...........69-73.
Weather.....................Partly cloudy.
High Temperature............In the lower 80s.
Winds.......................Northeast winds around 5 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Partly cloudy.
Low Temperature.............Around 70.
Winds.......................East winds around 5 mph, becoming south
                            after midnight.

.SATURDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly cloudy. Showers likely and a
                            chance of thunderstorms.
High Temperature............In the mid 80s.
Winds.......................Southwest winds 5 to 10 mph, becoming
                            around 10 mph late.

.SWIM RISK OUTLOOK...
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Low swim risk*.
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...Low swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...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

$$

INZ002-190915-
Porter-
Including the beaches of Indiana Dunes National Park
259 PM CDT Fri Jul 18 2025

.REST OF TODAY...
Swim Risk*..................Moderate.
Wave Height.................2 to 3 feet.
Water Temperature...........69-73.
Weather.....................Partly cloudy.
High Temperature............In the mid 70s.
Winds.......................North winds around 5 mph.

.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Partly cloudy.
Low Temperature.............Around 70.
Winds.......................Northeast winds around 5 mph, becoming
                            south late.

.SATURDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly cloudy. A chance of showers in
                            the morning. A chance of thunderstorms.
                            Showers likely in the afternoon.
High Temperature............In the mid 80s.
Winds.......................South winds 5 to 10 mph, becoming
                            southwest in the afternoon.

.SWIM RISK OUTLOOK...
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Low swim risk*.
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...Low swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...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


$$