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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: 7:34 pm CDT Apr 30, 2026
Forecast Valid: 7pm CDT Apr 30, 2026-6pm CDT May 7, 2026

Tonight

NE wind around 10 kt. Showers, mainly before 9pm. Waves around 1 ft.

Friday

N wind 10 to 15 kt. Cloudy, then gradually becoming mostly sunny. Waves 1 to 2 ft.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Waves around 1 ft.

Saturday

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

Saturday Night

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

Sunday

SSW wind around 15 kt. Partly sunny. Waves 1 to 2 ft.

Sunday Night

SSW wind 10 to 15 kt. A chance of showers and thunderstorms before 1am, then a slight chance of showers. Waves 1 to 2 ft.

Monday

SW wind 10 to 15 kt. A chance of showers. Waves around 1 ft.

Monday Night

SW wind 10 to 15 kt becoming W after midnight. A chance of showers and thunderstorms. 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.