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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: 9:51 pm CDT Mar 22, 2026
Forecast Valid: 11pm CDT Mar 22, 2026-6pm CDT Mar 29, 2026

Overnight

N wind around 20 kt, with gusts as high as 30 kt. Mostly cloudy. Waves 6 to 7 ft. occasionally to 9ft.

Monday

N wind 10 to 15 kt, with gusts as high as 20 kt. Sunny. Waves 5 ft subsiding to 2 ft.

Monday Night

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

Tuesday

S wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Tuesday Night

S wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Wednesday

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

Wednesday Night

S wind around 10 kt. A slight chance of showers and thunderstorms before 1am. Waves 1 ft or less.

Thursday

S wind around 10 kt becoming NNW in the afternoon. A chance of showers. Waves 1 ft or less.

Thursday Night

N wind 15 to 20 kt increasing to 20 to 25 kt after midnight. A chance of showers. Waves 1 ft building to 9 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.