SXUS43 KGRB 110221 RECGRB WIZ048-WIZ049-110330- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 921 PM CDT Sun May 10 2026 ...FREEZE WARNING IN EFFECT UNTIL 8 AM CDT MONDAY... .TONIGHT...East winds 5 to 20 knots. Areas of frost after midnight. Waves 1 foot or less. Lows in the mid 30s. .MONDAY...Northeast winds 5 to 10 knots. Areas of frost in the morning. Waves less than 1 foot. Highs in the lower 50s. .MONDAY NIGHT...Southeast winds 5 to 15 knots. Partly cloudy. Waves 1 foot or less. Lows in the lower 40s. .TUESDAY...Southwest winds 15 to 25 knots. Rain showers in the morning, then rain showers likely in the afternoon. Waves 2 to 4 feet. Highs in the mid 60s. $$