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4NM NE Chicago IL

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 8:16 pm CST Nov 4, 2026
Forecast Valid: 11pm CST Nov 4, 2026-6pm CST Nov 11, 2026

Overnight

SW wind around 10 kt, with gusts as high as 25 kt. Cloudy. Waves around 1 ft.

Thursday

SW wind around 10 kt becoming WNW in the afternoon. Winds could gust as high as 20 kt. A chance of showers, mainly after 2pm. Waves 1 ft or less.

Thursday Night

NNW wind 10 to 15 kt. Showers likely, mainly before 10pm. Waves 1 ft building to 4 ft.

Friday

NNW wind around 15 kt. A slight chance of rain. Waves 4 to 5 ft.

Friday Night

NNW wind 10 to 15 kt. Partly cloudy. Waves 5 ft subsiding to 2 ft.

Saturday

NW wind 5 to 10 kt. Mostly sunny. Waves 1 to 2 ft.

Saturday Night

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

Sunday

W wind 5 to 10 kt. Sunny. Waves 1 ft or less.

Sunday Night

Variable winds 5 kt or less. Mostly clear. 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.