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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: 5:26 am CDT Oct 9, 2026
Forecast Valid: 7am CDT Oct 9, 2026-6pm CDT Oct 15, 2026

Today

SSE wind 5 to 10 kt. A chance of showers and thunderstorms, mainly after 2pm. Waves 1 ft or less.

Tonight

ESE wind around 10 kt becoming S after midnight. A slight chance of showers before 7pm. Waves 1 to 2 ft.

Saturday

S wind around 10 kt, with gusts as high as 20 kt. Increasing clouds. Waves around 1 ft.

Saturday Night

SSE wind around 10 kt. Mostly cloudy. Waves around 1 ft.

Sunday

Variable winds 5 kt or less. Mostly sunny. 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

SW wind around 10 kt becoming WNW after midnight. A chance of showers and thunderstorms after 1am. Waves 1 ft or less.

Tuesday

N wind 10 to 15 kt. Mostly sunny. Waves 1 ft building to 4 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.