SXUS43 KGRB 021640 RECGRB WIZ048-WIZ049-022100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 1139 AM CDT Wed Jul 2 2025 .TODAY...West winds 5 to 10 knots. Slight chance of thunderstorms in the afternoon. Waves less than 1 foot. Near steady temperature around 80. .TONIGHT...West winds 5 to 10 knots. Slight chance of thunderstorms in the evening. Waves less than 1 foot. Lows in the upper 60s. .THURSDAY...East winds around 5 knots. Slight chance of thunderstorms in the afternoon. Waves less than 1 foot. Highs in the upper 70s. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Partly cloudy. Waves 1 foot or less. Lows in the upper 60s. $$