SXUS43 KGRB 152247 RECGRB WIZ048-WIZ049-160900- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 547 PM CDT Wed Apr 15 2026 ...FLOOD WATCH IN EFFECT THROUGH THURSDAY MORNING... ...DENSE FOG ADVISORY IN EFFECT FROM 11 PM THIS EVENING TO 10 AM CDT THURSDAY... .TONIGHT...Northeast winds around 5 knots. Patchy fog in the evening. Areas of fog after midnight. rain likely and chance of thunderstorms through the night. Waves less than 1 foot. Lows in the upper 40s. .THURSDAY...Northeast winds around 5 knots. Areas of fog in the morning. chance of rain and slight chance of thunderstorms in the morning. Waves less than 1 foot. Highs 56 to 61. .THURSDAY NIGHT...Southeast winds 5 to 10 knots. Mostly clear. Waves less than 1 foot. Lows in the upper 40s. .FRIDAY...Southeast winds 5 to 15 knots. Chance of rain in the afternoon. Waves 1 foot or less. Highs in the mid 60s. $$