SXUS43 KGRB 200747 RECGRB WIZ048-WIZ049-202100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 247 AM CDT Wed May 20 2026 .EARLY THIS MORNING...Northwest winds 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. Near steady temperature around 50. .TODAY...North winds 5 to 15 knots. Mostly sunny. Waves 1 to 2 feet. Highs in the upper 50s. .TONIGHT...East winds 5 to 15 knots. Mostly cloudy in the evening then becoming partly cloudy. Waves 1 to 3 feet. Lows in the lower 40s. .THURSDAY...East winds 5 to 10 knots. Partly sunny. Waves 1 to 2 feet. Highs in the mid 50s. .THURSDAY NIGHT...East winds around 10 knots. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 foot or less. Lows in the mid 40s. $$