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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: 2:36 pm CDT Apr 20, 2026
Forecast Valid: 5pm CDT Apr 20, 2026-6pm CDT Apr 27, 2026

Tonight

ESE wind 10 to 15 kt becoming S after midnight. Partly cloudy. Waves 1 to 2 ft.

Tuesday

SSW wind 10 to 15 kt. Mostly sunny. Waves 1 to 2 ft.

Tuesday Night

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

Wednesday

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

Wednesday Night

ENE wind 5 to 10 kt becoming S after midnight. Partly cloudy. Waves 1 ft or less.

Thursday

S wind 10 to 15 kt. Mostly sunny. Waves around 1 ft.

Thursday Night

S wind 15 to 20 kt. A chance of showers and thunderstorms after 1am. Waves 2 to 3 ft.

Friday

S wind 10 to 15 kt. Showers likely. Waves 1 to 3 ft.

Friday Night

SW wind 10 to 15 kt becoming NNW after midnight. A chance of showers. 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.