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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: 10:25 am CDT Aug 28, 2026
Forecast Valid: 11am CDT Aug 28, 2026-6pm CDT Sep 3, 2026

Today

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

Tonight

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Saturday

SSW wind around 10 kt. Increasing clouds. Waves 1 ft or less.

Saturday Night

S wind 10 to 15 kt. Mostly cloudy. Waves 1 ft or less.

Sunday

SSW wind 10 to 15 kt. Mostly sunny. Waves around 1 ft.

Sunday Night

SSW wind around 10 kt. A slight chance of showers and thunderstorms. Waves around 1 ft.

Monday

SSW wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

SSW wind around 10 kt. Partly cloudy. Waves 1 ft or less.

Tuesday

SW wind 5 to 10 kt. Mostly 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.