SXUS43 KGRB 070946 RECGRB WIZ048-WIZ049-072100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 446 AM CDT Thu May 7 2026 ...FROST ADVISORY IN EFFECT UNTIL 8 AM CDT THIS MORNING... .EARLY THIS MORNING...West winds around 5 knots. Mostly clear. Waves less than 1 foot. Near steady temperature in the upper 30s. .TODAY...West winds 5 to 10 knots. Slight chance of rain showers in the afternoon. Waves 1 foot or less. Highs in the lower 50s. .TONIGHT...West winds up to 10 knots backing southwest after midnight. Mostly clear. Waves 1 foot or less. Lows around 40. .FRIDAY...Southwest winds 5 to 10 knots. Mostly sunny. Waves 1 foot or less. Highs in the upper 50s. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Partly cloudy. Waves 1 foot or less. Lows in the upper 40s. $$