SXUS43 KGRB 251821 RECGRB WIZ048-WIZ049-252100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 121 PM CDT Sat Apr 25 2026 .THIS AFTERNOON...Northeast winds 5 to 10 knots. Sunny. Waves less than 1 foot. Highs in the mid 60s. .TONIGHT...East winds 5 to 10 knots. Mostly clear in the evening then becoming mostly cloudy. Waves less than 1 foot. Lows in the lower 40s. .SUNDAY...Southeast winds 5 to 10 knots. Partly sunny. Waves less than 1 foot. Highs around 60. .SUNDAY NIGHT...Southeast winds 10 to 15 knots. Chance of sprinkles after midnight. Waves less than 1 foot. Lows in the upper 40s. $$