Coastal Waters Forecast for Wilmette Harbor to Northerly Island IL (LMZ741) (Text-Only)
NWS Forecast for: Wilmette Harbor to Northerly Island IL (LMZ741)
Issued by: National Weather Service Chicago, IL
Last Update: 929 AM CDT Tue Sep 2 2025


Rest Of Today: North winds 5 to 10 kt becoming east this afternoon. Sunny. Waves around 1 ft.

Tonight: East winds 5 to 10 kt becoming southwest 10 to 15 kt late. Mostly clear. Waves around 1 ft.

Wednesday: Southwest winds 15 to 20 kt becoming west in the afternoon. Slight chance of showers and thunderstorms in the morning, then showers and a chance of thunderstorms in the afternoon. Waves 1 to 2 ft.

Wednesday Night: Northwest winds 15 to 20 kt. Chance of showers and slight chance of thunderstorms in the evening. Waves 1 to 3 ft building to 2 to 4 ft.







Zone Forecast: Wilmette Harbor to Northerly Island IL (LMZ741)

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