SXUS43 KGRB 192115 RECGRB WIZ048-WIZ049-200900- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 415 PM CDT Tue Aug 19 2025 .REST OF THE AFTERNOON...North winds around 5 knots. Chance of sprinkles. Waves less than 1 foot. Near steady temperature 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 1 foot or less. Highs in the mid 70s. .WEDNESDAY NIGHT...Northeast winds 5 to 10 knots. Mostly clear. Waves 1 foot or less. Lows in the mid 60s. .THURSDAY...Northeast winds 5 to 10 knots. Sunny. Waves less than 1 foot. Highs in the mid 70s. $$