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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: 5:16 am CDT Oct 10, 2026
Forecast Valid: 9am CDT Oct 10, 2026-6pm CDT Oct 16, 2026

Today

S wind around 10 kt, with gusts as high as 20 kt. Partly sunny. Waves around 1 ft.

Tonight

SE wind 5 to 10 kt, with gusts as high as 15 kt. Mostly cloudy. Waves 1 to 2 ft.

Sunday

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

Sunday Night

SE wind 5 to 10 kt becoming SSW after midnight. Increasing clouds. Waves 1 ft or less.

Columbus Day

SW wind 10 to 15 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

SW wind around 10 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

Tuesday

NW wind 10 to 15 kt becoming N in the afternoon. Partly sunny. Waves 1 ft building to 4 ft.

Tuesday Night

NNE wind around 15 kt. Partly cloudy. Waves 3 to 4 ft.

Wednesday

NE wind 10 to 15 kt. A chance of showers. Waves 2 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.