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4NM ENE Chicago IL

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 1:21 am CDT Sep 4, 2026
Forecast Valid: 2am CDT Sep 4, 2026-6pm CDT Sep 10, 2026

Friday

WNW wind 5 to 10 kt becoming SSE in the afternoon. A slight chance of showers and thunderstorms between 10am and noon. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly between midnight and 4am. Waves 1 ft or less.

Saturday

NW wind 5 to 10 kt becoming NNE in the afternoon. A slight chance of showers and thunderstorms before 7am. Waves 1 ft or less.

Saturday Night

NNE wind 10 to 15 kt becoming E after midnight. Partly cloudy. Waves around 2 ft.

Sunday

E wind 5 to 10 kt becoming NE in the afternoon. Mostly sunny. Waves 1 to 2 ft.

Sunday Night

NE wind 5 to 10 kt becoming SE after midnight. Partly cloudy. Waves around 1 ft.

Labor Day

Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

Monday Night

E wind 5 to 10 kt becoming SSE after midnight. Mostly cloudy. Waves around 1 ft.

Tuesday

SSE wind 5 to 10 kt. Partly sunny. Waves around 1 ft.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.