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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: 1:35 pm CDT Sep 8, 2026
Forecast Valid: 4pm CDT Sep 8, 2026-6pm CDT Sep 15, 2026

This Afternoon

ESE wind around 10 kt. Partly sunny. Waves 1 ft or less.

Tonight

S wind around 10 kt becoming SW after midnight. A slight chance of showers and thunderstorms after 4am. Waves 1 ft or less.

Wednesday

WSW wind 5 to 10 kt. Showers and thunderstorms likely before 1pm, then a slight chance of showers between 1pm and 4pm. Waves 1 ft or less.

Wednesday Night

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

Thursday

N wind 5 to 10 kt. Mostly sunny. Waves around 1 ft.

Thursday Night

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

Friday

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

Friday Night

SE wind around 10 kt becoming S after midnight. Mostly clear. Waves around 1 ft.

Saturday

S wind around 10 kt becoming WSW in the afternoon. A chance of showers and thunderstorms after 1pm. 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.