Surf Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
360
FZUS53 KLOT 221942
SRFLOT
Surf Zone Forecast for Lake Michigan Beaches
National Weather Service Chicago IL
242 PM CDT Fri Aug 22 2025
ILZ006-230915-
Lake-
Including the beaches of Illinois Beach State Park
242 PM CDT Fri Aug 22 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Water Temperature...........71-75.
Weather.....................Partly cloudy.
High Temperature............In the upper 70s.
Winds.......................Southeast winds 5 to 10 mph.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly cloudy. A slight chance of
showers late.
Low Temperature.............In the upper 60s.
Winds.......................South winds 5 to 10 mph, becoming
southwest after midnight.
.SATURDAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Partly cloudy, then becoming mostly
sunny. A slight chance of showers in
the morning.
High Temperature............Around 80.
Winds.......................West winds 10 to 15 mph with gusts up
to 25 mph.
.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
$$
ILZ103-104-230915-
Northern Cook-Central Cook-
Including the beaches of Chicago Park District
242 PM CDT Fri Aug 22 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Water Temperature...........70-74.
Weather.....................Mostly cloudy.
High Temperature............In the upper 70s.
Winds.......................East winds 5 to 10 mph.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly cloudy. A slight chance of
showers late.
Low Temperature.............In the upper 60s.
Winds.......................South winds 5 to 10 mph, becoming
southwest after midnight.
.SATURDAY...
Swim Risk*..................Low.
Wave Height.................1 to 2 feet.
Weather.....................Mostly cloudy, then becoming partly
cloudy. A slight chance of showers in
the morning.
High Temperature............In the lower 80s.
Winds.......................West winds 5 to 10 mph with gusts up to
25 mph, increasing to 10 to 15 mph with
gusts up to 25 mph late.
.SWIM RISK OUTLOOK...
.SATURDAY NIGHT...Low swim risk*.
.SUNDAY...Low swim risk*.
.SUNDAY NIGHT...Low swim risk*.
.MONDAY...Low swim risk*.
.MONDAY NIGHT...Low swim risk*.
.TUESDAY...Low swim risk*.
&&
Swim Risk Category
* Low Risk - Large waves and dangerous currents are not expected,
however dangerous currents may exist at any time near piers,
breakwalls, and river outlets.
* Moderate Risk - Breaking waves and currents are expected. Stay away
from dangerous areas like piers, breakwalls, and river outlets.
Always have a flotation device with you in the water.
* High Risk - Life-threatening waves and currents are expected. Stay
out of the water and stay away from dangerous areas like piers and
breakwalls.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/lot
$$
INZ001-230915-
Lake-
Including the beaches of Indiana Dunes National Park
242 PM CDT Fri Aug 22 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Water Temperature...........72-76.
Weather.....................Partly cloudy.
High Temperature............In the upper 70s.
Winds.......................Northeast winds around 5 mph.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Partly cloudy, then becoming mostly
cloudy.
Low Temperature.............In the upper 60s.
Winds.......................East winds around 5 mph, becoming south
in the late evening and overnight.
.SATURDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly cloudy, then becoming partly
cloudy. A slight chance of showers
until late afternoon.
High Temperature............In the lower 80s.
Winds.......................West winds 5 to 10 mph with gusts up to
20 mph, increasing to 10 to 15 mph
late.
.SWIM RISK OUTLOOK...
.SATURDAY NIGHT...Moderate swim risk*.
.SUNDAY...Low swim risk*.
.SUNDAY NIGHT...Moderate swim risk*.
.MONDAY...Moderate swim risk*.
.MONDAY NIGHT...Moderate 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
$$
INZ002-230915-
Porter-
Including the beaches of Indiana Dunes National Park
242 PM CDT Fri Aug 22 2025
.REST OF TODAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Water Temperature...........72-76.
Weather.....................Partly cloudy.
High Temperature............In the upper 70s.
Winds.......................North winds around 5 mph.
.TONIGHT...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Partly cloudy, then becoming mostly
cloudy.
Low Temperature.............In the upper 60s.
Winds.......................East winds around 5 mph, becoming south
in the late evening and overnight.
.SATURDAY...
Swim Risk*..................Low.
Wave Height.................Around 1 foot.
Weather.....................Mostly cloudy, then becoming partly
cloudy. A slight chance of showers. A
slight chance of thunderstorms in the
afternoon.
High Temperature............Around 80.
Winds.......................West winds 5 to 10 mph, becoming
northwest late.
.SWIM RISK OUTLOOK...
.SATURDAY NIGHT...Moderate swim risk*.
.SUNDAY...Moderate swim risk*.
.SUNDAY NIGHT...High swim risk*.
.MONDAY...High swim risk*.
.MONDAY NIGHT...Moderate swim risk*.
.TUESDAY...Moderate swim risk*.
&&
Swim Risk Category
* Low Risk - Large waves and dangerous currents are not expected,
however dangerous currents may exist at any time near piers,
breakwalls, and river outlets.
* Moderate Risk - Breaking waves and currents are expected. Stay away
from dangerous areas like piers, breakwalls, and river outlets.
Always have a flotation device with you in the water.
* High Risk - Life-threatening waves and currents are expected. Stay
out of the water and stay away from dangerous areas like piers and
breakwalls.
** For thunderstorm, waterspout, and UV definitions see:
https://www.weather.gov/beach/lot
$$