SXUS43 KGRB 030311 RECGRB WIZ048-WIZ049-030415- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 1011 PM CDT Wed Jul 2 2025 .TONIGHT...South winds around 5 knots veering west after midnight. Partly cloudy. Waves less than 1 foot. Near steady temperature around 70. .THURSDAY...East winds around 5 knots. Slight chance of thunderstorms in the afternoon. Waves less than 1 foot. Highs in the upper 70s. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Slight chance of thunderstorms after midnight. Waves 1 foot or less. Lows in the upper 60s. .FRIDAY...South winds 5 to 10 knots. Mostly sunny. Waves less than 1 foot. Highs in the mid 80s. $$