SXUS43 KGRB 041316 RECGRB WIZ048-WIZ049-042100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 816 AM CDT Mon May 4 2026 .TODAY...Southwest winds 15 to 20 knots with gusts to around 35 knots. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. Highs in the upper 60s. .TONIGHT...Northwest winds 10 to 15 knots. Slight chance of rain showers in the evening. Waves 1 foot or less. Lows in the lower 40s. .TUESDAY...Northwest winds 10 to 15 knots. Mostly sunny. Waves 1 foot or less. Highs in the lower 50s. .TUESDAY NIGHT...Northwest winds 5 to 10 knots. Partly cloudy. Waves 1 foot or less. Lows in the upper 30s. $$