SXUS43 KGRB 191824 RECGRB WIZ048-WIZ049-192100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 124 PM CDT Tue Aug 19 2025 .THIS AFTERNOON...North winds 5 to 10 knots. Chance of sprinkles. Waves 1 foot or less. Highs in the mid 70s. .TONIGHT...Northeast winds 5 to 10 knots. Chance of sprinkles in the evening. patchy fog after midnight. Waves less than 1 foot. Lows in the mid 60s. .WEDNESDAY...Northeast winds 5 to 10 knots. Patchy fog in the morning. chance of sprinkles through the day. Waves less than 1 foot. Highs in the mid 70s. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Mostly clear. Waves less than 1 foot. Lows in the mid 60s. $$