SXUS43 KGRB 151436 RECGRB WIZ048-WIZ049-152100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 936 AM CDT Thu Oct 15 2026 .TODAY...East winds 10 to 15 knots. Chance of rain showers late in the morning. Chance of drizzle through the day. Rain showers in the afternoon. Waves 1 to 2 feet. Near steady temperature in the mid 50s. .TONIGHT...Northeast winds 5 to 20 knots backing northwest 15 to 25 knots after midnight. Rain showers in the evening, then rain showers likely after midnight. Waves 1 to 3 feet building to 3 to 6 feet after midnight. Lows in the upper 40s. .FRIDAY...North winds 20 to 25 knots. Chance of rain showers through the day. Waves 4 to 7 feet. Near steady temperature around 50. .FRIDAY NIGHT...North winds 15 to 25 knots becoming northwest 5 to 15 knots after midnight. Mostly clear. Waves 3 to 5 feet. Lows in the mid 30s. $$