FZUS53 KGRB 240139 SRFGRB Surf Zone Forecast for East-Central and Northeast Wisconsin National Weather Service Green Bay WI 839 PM CDT Sun Aug 23 2026 WIZ022-240900- Door- Including the beaches of Rock Island State Beach, Baileys Harbor Beaches, and Whitefish Dunes Beach 839 PM CDT Sun Aug 23 2026 .MONDAY... Swim Risk*..................Low. Wave Height.................1 foot or less. UV Index**..................High. Water Temperature...........Around 70. Weather.....................Sunny. High Temperature............In the mid 70s. Winds.......................Northwest winds 5 to 10 mph. Sunrise.....................6:01 AM. Sunset......................7:41 PM. .TUESDAY... Swim Risk*..................Low. Wave Height.................1 to 2 feet. Weather.....................Sunny. High Temperature............In the mid 70s. Winds.......................South winds 5 to 10 mph. Sunrise.....................6:02 AM. Sunset......................7:40 PM. .EXTENDED... .WEDNESDAY...Wave height around 3 feet. Partly sunny. Showers likely and a chance of thunderstorms. Highs in the upper 70s. Southwest winds around 10 mph. .THURSDAY...Wave height 1 foot or less. Mostly sunny. Highs in the upper 70s. Northwest winds around 10 mph. .FRIDAY...Wave height 1 foot or less. Sunny. Highs in the mid 70s. North winds around 5 mph. && 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/grb $$ WIZ040-240900- Kewaunee- Including the beaches of Crescent Beach and City of Kewaunee Beach 839 PM CDT Sun Aug 23 2026 .MONDAY... Swim Risk*..................Low. Wave Height.................1 foot or less. UV Index**..................High. Water Temperature...........In the upper 60s. Weather.....................Sunny. High Temperature............In the mid 70s. Winds.......................Northwest winds 5 to 10 mph. Sunrise.....................6:03 AM. Sunset......................7:42 PM. .TUESDAY... Swim Risk*..................Low. Wave Height.................1 to 2 feet. Weather.....................Sunny. High Temperature............In the upper 70s. Winds.......................Southwest winds 5 to 10 mph. Sunrise.....................6:04 AM. Sunset......................7:40 PM. .EXTENDED... .WEDNESDAY...Wave height around 3 feet. Mostly sunny. Showers likely and a chance of thunderstorms. Highs around 80. Southwest winds around 10 mph. .THURSDAY...Wave height 1 foot or less. Sunny. Highs in the upper 70s. Northwest winds around 10 mph. .FRIDAY...Wave height 1 foot or less. Sunny. Highs in the mid 70s. Northeast winds around 5 mph. && Swim Risk Category * Low Risk - Large waves and dangerous currents are not expected, however dangerous currents may exist at any time near piers, breakwalls, and river outlets. * Moderate Risk - Breaking waves and currents are expected. Stay away from dangerous areas like piers, breakwalls, and river outlets. Always have a flotation device with you in the water. * High Risk - Life-threatening waves and currents are expected. Stay out of the water and stay away from dangerous areas like piers and breakwalls. ** For thunderstorm, waterspout, and UV definitions see: https://www.weather.gov/beach/grb $$ WIZ050-240900- Manitowoc- Including the beaches of Point Beach, Neshotah Beach, and Red Arrow Beach 839 PM CDT Sun Aug 23 2026 .MONDAY... Swim Risk*..................Low. Wave Height.................1 foot or less. UV Index**..................High. Water Temperature...........In the upper 60s. Weather.....................Sunny. High Temperature............In the mid 70s. Winds.......................Northwest winds around 5 mph. Sunrise.....................6:04 AM. Sunset......................7:42 PM. .TUESDAY... Swim Risk*..................Moderate. Wave Height.................1 foot or less, building to 1 to 3 feet in the afternoon. Weather.....................Mostly sunny. High Temperature............In the upper 70s. Winds.......................Southwest winds 5 to 10 mph. Sunrise.....................6:05 AM. Sunset......................7:40 PM. .EXTENDED... .WEDNESDAY...Wave height around 3 feet. Mostly sunny. A chance of thunderstorms. Highs in the lower 80s. Southwest winds around 15 mph. .THURSDAY...Wave height 1 foot or less. Sunny. Highs in the upper 70s. Northwest winds around 10 mph. .FRIDAY...Wave height 1 foot or less. Sunny. Highs in the mid 70s. Northeast winds around 10 mph. && 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/grb $$