


Surf Forecast
Issued by NWS Chicago, IL
Issued by NWS Chicago, IL
837 FZUS53 KLOT 311940 SRFLOT Surf Zone Forecast for Lake Michigan Beaches National Weather Service Chicago IL 240 PM CDT Thu Jul 31 2025 ILZ006-010915- Lake- Including the beaches of Illinois Beach State Park 240 PM CDT Thu Jul 31 2025 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH FRIDAY AFTERNOON... .REST OF TODAY... Swim Risk*..................High. Wave Height.................4 to 7 feet. Water Temperature...........71-75. Weather.....................Partly cloudy. Areas of smoke. High Temperature............In the lower 70s. Winds.......................North winds 15 to 20 mph. .TONIGHT... Swim Risk*..................High. Wave Height.................4 to 7 feet. Weather.....................Partly cloudy with patchy smoke and sprinkles. Low Temperature.............In the upper 60s. Winds.......................Northeast winds 15 to 20 mph, becoming east 10 to 15 mph late. .FRIDAY... Swim Risk*..................High. Wave Height.................3 to 6 feet. Weather.....................Partly cloudy. Scattered sprinkles until late afternoon. High Temperature............In the mid 70s. Winds.......................Northeast winds 10 to 15 mph. .SWIM RISK OUTLOOK... .FRIDAY NIGHT...Moderate swim risk*. .SATURDAY...Low swim risk*. .SATURDAY NIGHT...Low swim risk*. .SUNDAY...Low swim risk*. .SUNDAY NIGHT...Low swim risk*. .MONDAY...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 $$ ILZ103-104-010915- Northern Cook-Central Cook- Including the beaches of Chicago Park District 240 PM CDT Thu Jul 31 2025 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH FRIDAY AFTERNOON... .REST OF TODAY... Swim Risk*..................High. Wave Height.................4 to 7 feet. Water Temperature...........73-77. Weather.....................Partly cloudy. Areas of smoke. High Temperature............In the lower 70s. Winds.......................North winds 15 to 20 mph. .TONIGHT... Swim Risk*..................High. Wave Height.................4 to 7 feet. Weather.....................Partly cloudy with patchy smoke and sprinkles. Low Temperature.............In the upper 60s. Winds.......................Northeast winds 15 to 20 mph, becoming east 10 to 15 mph after midnight. .FRIDAY... Swim Risk*..................High. Wave Height.................3 to 6 feet. Weather.....................Partly cloudy. Scattered sprinkles through early afternoon. High Temperature............In the mid 70s. Winds.......................Northeast winds 10 to 15 mph, becoming around 15 mph late. .SWIM RISK OUTLOOK... .FRIDAY NIGHT...Moderate swim risk*. .SATURDAY...Low swim risk*. .SATURDAY NIGHT...Low swim risk*. .SUNDAY...Low swim risk*. .SUNDAY NIGHT...Low swim risk*. .MONDAY...Low swim risk*. && Swim Risk Category * Low Risk - Large waves and dangerous currents are not expected, however dangerous currents may exist at any time near piers, breakwalls, and river outlets. * Moderate Risk - Breaking waves and currents are expected. Stay away from dangerous areas like piers, breakwalls, and river outlets. Always have a flotation device with you in the water. * High Risk - Life-threatening waves and currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls. ** For thunderstorm, waterspout, and UV definitions see: https://www.weather.gov/beach/lot $$ INZ001-010915- Lake- Including the beaches of Indiana Dunes National Park 240 PM CDT Thu Jul 31 2025 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH FRIDAY AFTERNOON... .REST OF TODAY... Swim Risk*..................High. Wave Height.................4 to 7 feet. Water Temperature...........71-75. Weather.....................Partly cloudy. Areas of smoke. High Temperature............In the lower 70s. Winds.......................North winds 15 to 20 mph. .TONIGHT... Swim Risk*..................High. Wave Height.................3 to 6 feet. Weather.....................Partly cloudy with patchy smoke and sprinkles. Low Temperature.............In the mid 60s. Winds.......................Northeast winds 15 to 20 mph, becoming east 10 to 15 mph after midnight. .FRIDAY... Swim Risk*..................High. Wave Height.................3 to 5 feet. Weather.....................Partly cloudy. High Temperature............In the mid 70s. Winds.......................Northeast winds 10 to 15 mph, becoming north late. .SWIM RISK OUTLOOK... .FRIDAY NIGHT...Moderate swim risk*. .SATURDAY...Low swim risk*. .SATURDAY NIGHT...Low swim risk*. .SUNDAY...Low swim risk*. .SUNDAY NIGHT...Low swim risk*. .MONDAY...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 $$ INZ002-010915- Porter- Including the beaches of Indiana Dunes National Park 240 PM CDT Thu Jul 31 2025 ...BEACH HAZARDS STATEMENT IN EFFECT THROUGH FRIDAY AFTERNOON... .REST OF TODAY... Swim Risk*..................High. Wave Height.................4 to 7 feet. Water Temperature...........71-75. Weather.....................Partly cloudy. Areas of smoke. High Temperature............In the lower 70s. Winds.......................North winds 15 to 20 mph. .TONIGHT... Swim Risk*..................High. Wave Height.................3 to 6 feet. Weather.....................Partly cloudy with patchy smoke and sprinkles. Low Temperature.............In the lower 60s. Winds.......................Northeast winds 15 to 20 mph, becoming east 10 to 15 mph after midnight. .FRIDAY... Swim Risk*..................High. Wave Height.................3 to 5 feet. Weather.....................Partly cloudy. High Temperature............In the lower 70s. Winds.......................Northeast winds 10 to 15 mph, becoming north in the afternoon. .SWIM RISK OUTLOOK... .FRIDAY NIGHT...Moderate swim risk*. .SATURDAY...Low swim risk*. .SATURDAY NIGHT...Low swim risk*. .SUNDAY...Low swim risk*. .SUNDAY NIGHT...Low swim risk*. .MONDAY...Low swim risk*. && Swim Risk Category * Low Risk - Large waves and dangerous currents are not expected, however dangerous currents may exist at any time near piers, breakwalls, and river outlets. * Moderate Risk - Breaking waves and currents are expected. Stay away from dangerous areas like piers, breakwalls, and river outlets. Always have a flotation device with you in the water. * High Risk - Life-threatening waves and currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls. ** For thunderstorm, waterspout, and UV definitions see: https://www.weather.gov/beach/lot $$