SXUS43 KGRB 271720 RECGRB WIZ048-WIZ049-272100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 1220 PM CDT Mon Oct 27 2025 .THIS AFTERNOON...East winds 10 to 15 knots. Sunny. Waves 1 foot or less. Highs in the mid 50s. .TONIGHT...East winds around 10 knots. Mostly clear. Waves 1 foot or less. Lows in the mid 40s. .TUESDAY...East winds 10 to 15 knots. Mostly sunny. Waves 1 foot or less. Highs in the mid 50s. .TUESDAY NIGHT...East winds 10 to 20 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet. Lows in the mid 40s. $$