SXUS43 KGRB 060621 RECGRB WIZ048-WIZ049-060900- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 121 AM CDT Wed May 6 2026 ...FROST ADVISORY IN EFFECT UNTIL 8 AM CDT THIS MORNING... .REST OF THE NIGHT...Northwest winds around 5 knots. Partly cloudy. Waves 1 foot or less. Lows in the upper 30s. .WEDNESDAY...West winds 5 to 10 knots. Partly sunny. Waves 1 foot or less. Highs in the lower 50s. .WEDNESDAY NIGHT...West winds 5 to 10 knots. Partly cloudy. Waves 1 foot or less. Lows in the upper 30s. .THURSDAY...West winds 5 to 10 knots. Chance of rain showers through the day. Waves 1 foot or less. Highs in the mid 50s. $$