SXUS43 KGRB 242306 RECGRB WIZ048-WIZ049-250900- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 606 PM CDT Fri Apr 24 2026 .TONIGHT...North winds 5 to 10 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves less than 1 foot. Lows in the mid 40s. .SATURDAY...Northeast winds 5 to 10 knots. Mostly sunny. Waves less than 1 foot. Highs in the upper 50s. .SATURDAY NIGHT...East winds 5 to 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves less than 1 foot. Lows in the lower 40s. .SUNDAY...East winds 5 to 10 knots. Mostly sunny. Waves less than 1 foot. Highs around 60. $$