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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: 1:16 am CDT Mar 18, 2026
Forecast Valid: 2am CDT Mar 18, 2026-6pm CDT Mar 24, 2026

Wednesday

S wind 10 to 15 kt, with gusts as high as 25 kt. Snow showers, mainly before 7am. Waves 1 to 2 ft.

Wednesday Night

Variable winds 5 kt or less. Scattered showers after 1am. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. Scattered showers before 1pm. Waves 1 ft or less.

Thursday Night

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

Friday

SSW wind 5 to 10 kt becoming W in the afternoon. Mostly cloudy. Waves 1 ft or less.

Friday Night

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

Saturday

W wind 5 to 10 kt becoming SSW in the afternoon. Mostly sunny. Waves around 1 ft.

Saturday Night

SW wind 10 to 15 kt becoming N after midnight. Winds could gust as high as 20 kt. Mostly cloudy. Waves around 1 ft.

Sunday

N wind 15 to 20 kt. Mostly cloudy. Waves 1 to 3 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.