Surf Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
804
FZUS53 KLOT 162056
SRFLOT
Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
356 PM CDT Sat Aug 16 2025
ILZ006-170915-
Lake-
Including the beaches of Illinois Beach State Park
356 PM CDT Sat Aug 16 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........73-77.
Weather.....................Mostly cloudy. Showers and
thunderstorms.
High Temperature............In the lower 90s.
Winds.......................East winds 10 to 15 mph with gusts up
to 25 mph.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly cloudy. Showers and
thunderstorms likely, mainly in the
evening.
Low Temperature.............In the lower 70s.
Winds.......................Southeast winds 10 to 15 mph, becoming
southwest 5 to 10 mph late in the
evening, then becoming west after
midnight, becoming northwest late.
.SUNDAY...
Swim Risk*..................High.
Wave Height.................1 to 3 feet building to 3 to 5 feet in the afternoon.
Weather.....................Mostly cloudy. A slight chance of
showers and thunderstorms until late
afternoon.
High Temperature............In the upper 70s.
Winds.......................North winds 10 to 20 mph.
.SWIM RISK OUTLOOK...
.SUNDAY NIGHT...High swim risk*.
.MONDAY...High swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...Low swim risk*.
.TUESDAY NIGHT...High swim risk*.
.WEDNESDAY...High 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
$$
ILZ103-104-170915-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
356 PM CDT Sat Aug 16 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........73-77.
Weather.....................Mostly cloudy. A chance of showers and
thunderstorms.
High Temperature............Around 90.
Winds.......................East winds 10 to 15 mph with gusts up
to 25 mph.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly cloudy. Showers and
thunderstorms likely, mainly in the
evening.
Low Temperature.............In the mid 70s.
Winds.......................East winds 10 to 15 mph, becoming
southwest 5 to 10 mph late in the
evening, then becoming west after
midnight.
.SUNDAY...
Swim Risk*..................High.
Wave Height.................1 to 3 feet building to 3 to 5 feet in the afternoon.
Weather.....................Mostly cloudy. A slight chance of
showers and thunderstorms until late
afternoon.
High Temperature............In the upper 70s.
Winds.......................North winds 5 to 10 mph with gusts up
to 20 mph, increasing to 10 to 15 mph
late.
.SWIM RISK OUTLOOK...
.SUNDAY NIGHT...High swim risk*.
.MONDAY...High swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...Low swim risk*.
.TUESDAY NIGHT...High swim risk*.
.WEDNESDAY...High 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
$$
INZ001-170915-
Lake-
Including the beaches of Indiana Dunes National Park
356 PM CDT Sat Aug 16 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........76-80.
Weather.....................Mostly cloudy. A slight chance of
showers and thunderstorms.
High Temperature............In the mid 90s.
Winds.......................East winds 5 to 10 mph with gusts up to
25 mph.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly cloudy. A chance of
thunderstorms early in the evening. A
chance of showers. A chance of
thunderstorms in the late evening and
overnight.
Low Temperature.............In the mid 70s.
Winds.......................Northeast winds 10 to 15 mph, becoming
southwest 5 to 10 mph late in the
evening, then becoming west after
midnight, becoming southwest late.
.SUNDAY...
Swim Risk*..................Moderate.
Wave Height.................1 to 3 feet building to 2 to 4 feet in the afternoon.
Weather.....................Mostly cloudy. A slight chance of
showers and thunderstorms until late
afternoon.
High Temperature............In the upper 70s.
Winds.......................Northwest winds 5 to 10 mph, becoming
north with gusts up to 20 mph in the
afternoon.
.SWIM RISK OUTLOOK...
.SUNDAY NIGHT...High swim risk*.
.MONDAY...Moderate swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...Low swim risk*.
.TUESDAY NIGHT...High swim risk*.
.WEDNESDAY...High 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
$$
INZ002-170915-
Porter-
Including the beaches of Indiana Dunes National Park
356 PM CDT Sat Aug 16 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Water Temperature...........76-80.
Weather.....................Mostly cloudy. A chance of showers and
a slight chance of thunderstorms.
High Temperature............In the lower 90s.
Winds.......................Northeast winds around 5 mph.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................1 to 3 feet.
Weather.....................Mostly cloudy. A chance of
thunderstorms early in the evening. A
chance of showers. A chance of
thunderstorms in the late evening and
overnight.
Low Temperature.............In the lower 70s.
Winds.......................North winds 10 to 15 mph, becoming
south 5 to 10 mph late in the evening,
then becoming southwest after midnight.
.SUNDAY...
Swim Risk*..................Moderate.
Wave Height.................1 to 3 feet building to 2 to 4 feet in the afternoon.
Weather.....................Mostly cloudy. A slight chance of
showers and thunderstorms until late
afternoon.
High Temperature............In the upper 70s.
Winds.......................Northwest winds 5 to 10 mph, becoming
north with gusts up to 20 mph in the
afternoon.
.SWIM RISK OUTLOOK...
.SUNDAY NIGHT...High swim risk*.
.MONDAY...Moderate swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...Low swim risk*.
.TUESDAY NIGHT...High swim risk*.
.WEDNESDAY...High 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
$$