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17NM ENE Chicago IL

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 7:33 am CDT Apr 18, 2026
Forecast Valid: 8am CDT Apr 18, 2026-6pm CDT Apr 24, 2026

Today

W wind around 15 kt, with gusts as high as 20 kt. A slight chance of showers before 9am. Waves 2 to 3 ft.

Tonight

WNW wind 10 to 15 kt. Mostly cloudy, then gradually becoming clear. Waves 1 to 2 ft.

Sunday

W wind around 10 kt becoming N in the afternoon. A slight chance of showers after 1pm. Waves around 1 ft.

Sunday Night

N wind 5 to 10 kt becoming NE after midnight. Mostly clear. Waves around 1 ft.

Monday

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

Monday Night

ESE wind 10 to 15 kt becoming S after midnight. Winds could gust as high as 20 kt. Mostly cloudy. Waves 1 to 2 ft.

Tuesday

SSW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 to 3 ft.

Tuesday Night

WSW wind around 10 kt becoming NNW after midnight. Partly cloudy. Waves 1 ft or less.

Wednesday

NNE wind 5 to 10 kt. Mostly sunny. Waves 1 to 2 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.