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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: 8:56 pm CDT Sep 4, 2026
Forecast Valid: 11pm CDT Sep 4, 2026-6pm CDT Sep 11, 2026

Overnight

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly before 4am. Patchy fog after 4am. Waves 1 ft or less.

Saturday

NNE wind 5 to 10 kt, with gusts as high as 15 kt. Patchy fog before 9am. Waves 1 to 2 ft.

Saturday Night

NNE wind 10 to 15 kt becoming E after midnight. Mostly cloudy, then gradually becoming clear. Waves 2 to 3 ft.

Sunday

ENE wind around 10 kt. Sunny. Waves 1 to 2 ft.

Sunday Night

NE wind 5 to 10 kt becoming SE after midnight. Mostly clear. Waves around 1 ft.

Labor Day

SE wind 5 to 10 kt becoming ENE in the afternoon. Mostly sunny. Waves 1 ft or less.

Monday Night

E wind around 10 kt becoming SSE after midnight. Partly cloudy. Waves around 1 ft.

Tuesday

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

Tuesday Night

S wind around 10 kt, with gusts as high as 15 kt. Partly cloudy. Waves around 1 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.