SXUS43 KGRB 200914 RECGRB WIZ048-WIZ049-202100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 414 AM CDT Wed Aug 20 2025 .EARLY THIS MORNING...Northeast winds 5 to 10 knots. Patchy fog. Waves less than 1 foot. Near steady temperature in the upper 60s. .TODAY...Northeast winds 5 to 10 knots. Patchy fog in the morning. chance of sprinkles in the afternoon. Waves less than 1 foot. Highs in the mid 70s. .TONIGHT...Northeast winds 5 to 10 knots. Partly cloudy. Waves less than 1 foot. Lows in the mid 60s. .THURSDAY...Northeast winds up to 10 knots. Mostly sunny. Waves less than 1 foot. Highs in the mid 70s. .THURSDAY NIGHT...East winds up to 5 knots veering south around 5 knots after midnight. Mostly clear. Waves less than 1 foot. Lows in the mid 60s. $$