SXUS43 KGRB 060752 RECGRB WIZ048-WIZ049-062100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 252 AM CDT Wed May 6 2026 ...FROST ADVISORY IN EFFECT UNTIL 8 AM CDT THIS MORNING... .EARLY THIS MORNING...North winds up to 5 knots. Mostly clear. Waves less than 1 foot. Near steady temperature in the upper 30s. .TODAY...West winds 5 to 10 knots. Partly sunny. Waves 1 foot or less. Highs in the lower 50s. .TONIGHT...West winds 5 to 10 knots. Mostly cloudy in the evening then clearing. 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. .THURSDAY NIGHT...Southwest winds 5 to 10 knots. Partly cloudy. Waves 1 foot or less. Lows in the lower 40s. $$