SXUS43 KGRB 201901 RECGRB WIZ048-WIZ049-210900- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 201 PM CDT Sat Jun 20 2026 .REST OF THE AFTERNOON...Northwest winds around 10 knots. Isolated thunderstorms. Waves 1 foot or less. Highs in the lower 70s. .TONIGHT...Northwest winds 5 to 10 knots veering east after midnight. Isolated rain showers in the evening. Waves 1 foot or less. Lows in the mid 50s. .SUNDAY...East winds up to 10 knots. Partly sunny. Waves less than 1 foot. Highs in the lower 70s. .SUNDAY NIGHT...Northeast winds 5 to 15 knots. Mostly cloudy. Waves 1 foot or less. Lows in the mid 50s. .MONDAY...Northeast winds 5 to 15 knots. Sunny. Waves 1 to 2 feet. Highs in the lower 70s. $$