SXUS43 KGRB 091732 RECGRB WIZ048-WIZ049-092100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 1232 PM CDT Fri May 9 2025 .THIS AFTERNOON...Southwest winds up to 5 knots. Sunny. Waves less than 1 foot. Highs in the mid 60s. .TONIGHT...Southwest winds 5 to 10 knots. Slight chance of rain showers after midnight. Waves less than 1 foot. Lows in the lower 50s. .SATURDAY...Northeast winds 10 to 15 knots. Sunny. Waves 1 foot or less. Highs in the lower 60s. .SATURDAY NIGHT...East winds 5 to 10 knots. Clear. Waves 1 foot or less. Lows in the mid 40s. $$