SXUS43 KGRB 270024 RECGRB WIZ048-WIZ049-270130- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 724 PM CDT Sun Oct 26 2025 .TONIGHT...Southeast winds 5 to 10 knots. Patchy fog after midnight. Waves 1 foot or less. Near steady temperature in the mid 40s. .MONDAY...Southeast winds 10 to 15 knots. Patchy fog in the morning. Waves 1 foot or less. Highs in the mid 50s. .MONDAY NIGHT...East winds 10 to 15 knots. Partly cloudy. Waves 1 foot or less. Near steady temperature in the upper 40s. .TUESDAY...East winds around 15 knots. Partly sunny. Waves 1 foot or less. Highs in the lower 50s. $$