SXUS43 KGRB 072321 RECGRB WIZ048-WIZ049-080900- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 621 PM CDT Tue Jul 7 2026 .TONIGHT...Southwest winds around 5 knots. Partly cloudy. Waves less than 1 foot. Lows in the upper 60s. .WEDNESDAY...Southwest winds 5 to 10 knots. Slight chance of showers in the morning, then chance of thunderstorms in the afternoon. Waves 1 foot or less. Highs in the lower 80s. .WEDNESDAY NIGHT...Southwest winds 5 to 10 knots. Showers in the evening. Chance of thunderstorms through the night. Showers likely after midnight. Waves 1 foot or less. Lows in the upper 60s. .THURSDAY...West winds 5 to 10 knots veering northeast in the afternoon. Chance of showers. Waves 1 foot or less. Highs in the upper 70s. $$