Northerly Island, Chicago, IL - LMZ742 - 4/18/2026 2:01 PM
Northerly Island to Calumet Harbor IL
SMALL CRAFT ADVISORY IN EFFECT UNTIL 10 PM CDT THIS EVENING
LATE THIS AFTERNOON
West winds to 30 kt. Partly cloudy. Waves 2 to 4 ft.
TONIGHT
West winds 20 to 25 kt becoming southwest and diminishing to around 15 kt. Mostly clear. Waves 2 to 4 ft subsiding to 1 to 2 ft.
SUNDAY
Southwest winds 10 to 15 kt becoming northwest 15 to 25 kt. Slight chance of showers in the morning, then chance of showers in the afternoon. Waves 1 to 2 ft.
SUNDAY NIGHT
North winds 10 to 15 kt becoming northeast overnight. Partly cloudy in the evening then clearing. Waves 1 to 3 ft.
MONDAY
East winds 10 to 15 kt becoming southeast. Mostly sunny. Waves 1 to 3 ft.