SXUS43 KGRB 090227 RECGRB WIZ048-WIZ049-090330- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 927 PM CDT Thu May 8 2025 ...FROST ADVISORY IN EFFECT FROM 1 AM TO 8 AM CDT FRIDAY... .TONIGHT...Northeast winds up to 10 knots. Areas of frost after midnight. Waves 1 foot or less. Lows in the mid 30s. .FRIDAY...Southwest winds up to 5 knots. Areas of frost in the morning. Waves less than 1 foot. Highs in the lower 60s. .FRIDAY NIGHT...Southwest winds 5 to 10 knots. Slight chance of rain showers after midnight. Waves less than 1 foot. Lows in the lower 50s. .SATURDAY...Northeast winds 5 to 10 knots. Sunny. Waves 1 foot or less. Highs in the lower 60s. $$