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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: 1:20 pm CDT Sep 7, 2026
Forecast Valid: 2pm CDT Sep 7, 2026-6pm CDT Sep 13, 2026

Labor Day

ENE wind around 10 kt. Sunny. Waves 1 ft or less.

Tonight

E wind 5 to 10 kt becoming SSE after midnight. Partly cloudy. Waves 1 to 2 ft.

Tuesday

SSE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Waves 1 ft or less.

Tuesday Night

SSW wind around 10 kt. A chance of showers and thunderstorms after 4am. Waves 1 ft or less.

Wednesday

WSW wind around 10 kt. Showers and thunderstorms likely, mainly before 1pm. Waves 1 ft or less.

Wednesday Night

W wind around 10 kt becoming NW after midnight. A slight chance of showers before 7pm. Waves 1 ft or less.

Thursday

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

Thursday Night

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

Friday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

*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.