SXUS43 KGRB 040142 RECGRB WIZ048-WIZ049-040245- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 841 PM CDT Sun May 3 2026 .TONIGHT...Southwest winds 5 to 10 knots. Mostly clear. Waves 1 foot or less. Lows in the upper 40s. .MONDAY...Southwest winds 10 to 20 knots. Chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 to 3 feet. Highs in the upper 60s. .MONDAY NIGHT...Northwest winds 10 to 15 knots. Slight chance of thunderstorms in the evening. Waves 1 foot or less. Lows in the lower 40s. .TUESDAY...Northwest winds around 10 knots. Partly sunny. Waves 1 foot or less. Highs in the lower 50s. $$