Wilmette Harbor To Northerly Island-
Northerly Island To Calumet Harbor-
North winds 10 to 15 kt becoming northeast 10 to 20 kt this evening, then becoming east 15 to 25 kt overnight. Chance of showers and thunderstorms. Waves 2 to 4 ft building to 3 to 5 ft.
Southeast winds 10 to 20 kt. Chance of showers and slight chance of thunderstorms through the day. Waves 3 to 5 ft subsiding to 2 to 4 ft in the afternoon.
Southwest winds 10 to 15 kt becoming west after midnight. Showers and thunderstorms likely. Waves 1 to 3 ft subsiding to 1 ft or less after midnight.
North winds around 10 kt. Slight chance of showers and thunderstorms in the morning. Waves 1 to 3 ft.