SXUS43 KGRB 090922 RECGRB WIZ048-WIZ049-092100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 422 AM CDT Fri May 9 2025 ...FROST ADVISORY IN EFFECT UNTIL 8 AM CDT THIS MORNING... .EARLY THIS MORNING...East winds up to 5 knots. Areas of frost. Waves less than 1 foot. Near steady temperature in the upper 30s. .TODAY...South winds up to 5 knots. Areas of frost in the morning. Waves less than 1 foot. Highs in the mid 60s. .TONIGHT...Southwest winds 5 to 10 knots. Chance of sprinkles through the night. Waves less than 1 foot. Lows in the lower 50s. .SATURDAY...Northeast winds around 10 knots. Sunny. Waves 1 foot or less. Highs in the lower 60s. .SATURDAY NIGHT...East winds 5 to 10 knots. Clear. Waves 1 foot or less. Lows in the mid 40s. $$