SXUS43 KGRB 091516 RECGRB WIZ048-WIZ049-092100- Recreational Forecast for Lake Winnebago National Weather Service Green Bay WI 1016 AM CDT Thu Jul 9 2026 .TODAY...Northwest winds 5 to 10 knots. Slight chance of thunderstorms through the day. Chance of showers in the afternoon. Waves less than 1 foot. Near steady temperature in the mid 70s. .TONIGHT...Northeast winds 5 to 10 knots. Patchy fog in the evening. slight chance of thunderstorms in the evening. Waves less than 1 foot. Lows in the lower 60s. .FRIDAY...Northeast winds 5 to 10 knots. Sunny. Waves 1 foot or less. Highs in the upper 70s. .FRIDAY NIGHT...East winds up to 5 knots. Mostly clear. Waves less than 1 foot. Lows in the lower 60s. $$