FZUS53 KLOT 232015 SRFLOT Surf Zone Forecast for Lake Michigan Beaches National Weather Service Chicago IL 315 PM CDT Sun Aug 23 2026 ILZ006-242015- Lake- Including the beaches of Illinois Beach State Park 315 PM CDT Sun Aug 23 2026 .REST OF TODAY... Swim Risk*..................Moderate. Wave Height.................2 to 4 feet. Water Temperature...........71-75. Weather.....................Partly cloudy. High Temperature............In the mid 70s. Winds.......................Northwest winds 10 to 20 mph. .TONIGHT... Swim Risk*..................Low. Wave Height.................1 to 3 feet. Weather.....................Mostly clear. Low Temperature.............In the upper 50s. Winds.......................Northwest winds 5 to 10 mph. .MONDAY... Swim Risk*..................Low. Wave Height.................1 to 3 feet. Weather.....................Mostly sunny. High Temperature............In the mid 70s. Winds.......................Northwest winds 5 to 10 mph, becoming north late. .SWIM RISK OUTLOOK... .MONDAY NIGHT...Low swim risk*. .TUESDAY...Low swim risk*. .TUESDAY NIGHT...Low swim risk*. .WEDNESDAY...Low swim risk*. .WEDNESDAY NIGHT...Low swim risk*. .THURSDAY...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 $$ ILZ103-104-242015- Northern Cook-Central Cook- Including the beaches of Chicago Park District 315 PM CDT Sun Aug 23 2026 .REST OF TODAY... Swim Risk*..................Moderate. Wave Height.................2 to 4 feet. Water Temperature...........71-75. Weather.....................Partly cloudy. High Temperature............In the mid 70s. Winds.......................Northeast winds 10 to 15 mph with gusts up to 20 mph. .TONIGHT... Swim Risk*..................Moderate. Wave Height.................2 to 4 feet subsiding to 1 to 3 ft. Weather.....................Mostly clear. Low Temperature.............Around 60. Winds.......................Northeast winds around 10 mph becoming, northwest and diminishing to around 5 mph late. .MONDAY... Swim Risk*..................Low. Wave Height.................1 to 3 feet. Weather.....................Mostly sunny, then becoming partly cloudy. High Temperature............In the mid 70s. Winds.......................Northwest winds around 5 mph, becoming north in the afternoon. .SWIM RISK OUTLOOK... .MONDAY NIGHT...Low swim risk*. .TUESDAY...Low swim risk*. .TUESDAY NIGHT...Low swim risk*. .WEDNESDAY...Low swim risk*. .WEDNESDAY NIGHT...Low swim risk*. .THURSDAY...Low swim risk*. && Swim Risk Category * Low Risk - Large waves and dangerous currents are not expected, however dangerous currents may exist at any time near piers, breakwalls, and river outlets. * Moderate Risk - Breaking waves and currents are expected. Stay away from dangerous areas like piers, breakwalls, and river outlets. Always have a flotation device with you in the water. * High Risk - Life-threatening waves and currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls. ** For thunderstorm, waterspout, and UV definitions see: https://www.weather.gov/beach/lot $$ INZ001-242015- Lake- Including the beaches of Indiana Dunes National Park 315 PM CDT Sun Aug 23 2026 .REST OF TODAY... Swim Risk*..................Moderate. Wave Height.................2 to 4 feet. Water Temperature...........69-73. Weather.....................Partly cloudy. High Temperature............In the mid 70s. Winds.......................Northeast winds around 10 mph with gusts up to 20 mph. .TONIGHT... Swim Risk*..................Moderate. Wave Height.................2 to 4 feet. Weather.....................Mostly clear. Low Temperature.............In the lower 60s. Winds.......................North winds 10 to 15 mph, becoming northwest around 5 mph late. .MONDAY... Swim Risk*..................Low. Wave Height.................1 to 3 feet. Weather.....................Mostly sunny, then becoming partly cloudy. High Temperature............In the mid 70s. Winds.......................Northwest winds around 5 mph, becoming north in the afternoon. .SWIM RISK OUTLOOK... .MONDAY NIGHT...Low swim risk*. .TUESDAY...Low swim risk*. .TUESDAY NIGHT...Low swim risk*. .WEDNESDAY...Low swim risk*. .WEDNESDAY NIGHT...Low swim risk*. .THURSDAY...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 $$ INZ002-242015- Porter- Including the beaches of Indiana Dunes National Park 315 PM CDT Sun Aug 23 2026 ...BEACH HAZARDS STATEMENT IN EFFECT UNTIL 10 PM CDT THIS EVENING... .REST OF TODAY... Swim Risk*..................High. Wave Height.................3 to 5 feet. Water Temperature...........69-73. Weather.....................Mostly sunny. High Temperature............In the mid 70s. Winds.......................Northwest winds 10 to 20 mph. .TONIGHT... Swim Risk*..................High. Wave Height.................3 to 5 feet subsiding to 2 to 4 feet. Weather.....................Mostly clear. Low Temperature.............In the lower 60s. Winds.......................Northwest winds 10 to 15 mph. .MONDAY... Swim Risk*..................Low. Wave Height.................1 to 3 feet. Weather.....................Mostly sunny. High Temperature............In the lower 70s. Winds.......................Northwest winds around 5 mph, becoming north around 5 mph late. .SWIM RISK OUTLOOK... .MONDAY NIGHT...Low swim risk*. .TUESDAY...Low swim risk*. .TUESDAY NIGHT...Low swim risk*. .WEDNESDAY...Low swim risk*. .WEDNESDAY NIGHT...Low swim risk*. .THURSDAY...Low swim risk*. && Swim Risk Category * Low Risk - Large waves and dangerous currents are not expected, however dangerous currents may exist at any time near piers, breakwalls, and river outlets. * Moderate Risk - Breaking waves and currents are expected. Stay away from dangerous areas like piers, breakwalls, and river outlets. Always have a flotation device with you in the water. * High Risk - Life-threatening waves and currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls. **For thunderstorm, waterspout, and UV definitions see: https://www.weather.gov/beach/lot $$