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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: 4:51 am CDT Aug 20, 2026
Forecast Valid: 10am CDT Aug 20, 2026-6pm CDT Aug 26, 2026

Today

NE wind 5 to 10 kt. Sunny. Waves 1 to 2 ft.

Tonight

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

Friday

SSW wind 5 to 10 kt. A chance of showers and thunderstorms, mainly after 4pm. Waves 1 ft or less.

Friday Night

SSW wind 5 to 10 kt becoming W after midnight. A chance of showers and thunderstorms before 1am. Waves 1 ft or less.

Saturday

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

Saturday Night

N wind 5 to 10 kt. Mostly clear. Waves 1 to 2 ft.

Sunday

NNE wind around 10 kt. Sunny. Waves around 2 ft.

Sunday Night

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

Monday

Variable winds 5 kt or less. Mostly 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.