SXUS43 KGRB 180226 RECGRB WIZ048-WIZ049-180330- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 926 PM CDT Fri Apr 17 2026 ...FLOOD WATCH IN EFFECT UNTIL 7 AM CDT SATURDAY... .TONIGHT...South winds 15 to 20 knots veering west after midnight. Rain showers likely late in the evening. Chance of thunderstorms through the night. patchy fog after midnight. Waves less than 1 foot. Lows in the upper 30s. .SATURDAY...West winds 15 to 20 knots. Mostly sunny. Waves less than 1 foot. Highs in the mid 40s. .SATURDAY NIGHT...West winds 10 to 20 knots. Partly cloudy. Waves less than 1 foot. Lows in the lower 30s. .SUNDAY...Northwest winds 10 to 15 knots. Chance of snow showers and rain showers in the morning. Waves less than 1 foot. Highs in the lower 40s. $$