SXUS43 KGRB 201706 RECGRB WIZ048-WIZ049-202100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 1206 PM CDT Sat Jun 20 2026 .THIS 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. $$