SXUS43 KGRB 150621 RECGRB WIZ048-WIZ049-150900- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 121 AM CDT Wed Apr 15 2026 ...FLOOD WATCH IN EFFECT UNTIL 7 AM CDT THIS MORNING... .REST OF THE NIGHT...East winds around 5 knots. Areas of fog. slight chance of rain showers. Waves less than 1 foot. Near steady temperature in the mid 50s. .WEDNESDAY...Northeast winds around 5 knots. Widespread fog in the morning. Patchy fog in the afternoon. chance of rain showers through the day. Slight chance of thunderstorms in the afternoon. Waves less than 1 foot. Highs in the upper 50s. .WEDNESDAY NIGHT...East winds around 5 knots. Patchy fog in the evening. Areas of fog after midnight. rain showers likely and chance of thunderstorms through the night. Waves 1 foot or less. Lows in the upper 40s. .THURSDAY...Northeast winds 5 to 10 knots. Areas of fog in the morning. chance of rain showers through the day. Waves 1 foot or less. Highs in the upper 50s. $$