SXUS43 KGRB 041006 RECGRB WIZ048-WIZ049-042100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 506 AM CDT Mon May 4 2026 .EARLY THIS MORNING...Southwest winds around 10 knots. Mostly clear. Waves 1 foot or less. Near steady temperature in the upper 40s. .TODAY...Southwest winds 10 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. $$