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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: 3:35 pm CDT Oct 8, 2026
Forecast Valid: 5pm CDT Oct 8, 2026-6pm CDT Oct 15, 2026

Tonight

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

Friday

SSE wind 5 to 10 kt. Scattered showers, with thunderstorms also possible after 4pm. Waves 1 ft or less.

Friday Night

SE wind around 10 kt becoming S after midnight. A slight chance of showers and thunderstorms before 7pm. Waves around 1 ft.

Saturday

S wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves around 1 ft.

Saturday Night

SSE wind around 10 kt. A slight chance of showers after 1am. Waves around 1 ft.

Sunday

Variable winds 5 kt or less. A slight chance of showers before 1pm. Waves 1 ft or less.

Sunday Night

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

Columbus Day

SSW wind 5 to 10 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

SSW wind around 10 kt becoming W after midnight. A chance of showers. Waves 1 ft or less.

*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.