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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: 2:51 pm CDT Oct 23, 2026
Forecast Valid: 6pm CDT Oct 23, 2026-6pm CDT Oct 30, 2026

Tonight

E wind 5 to 10 kt becoming SSE after midnight. Mostly clear. Waves 1 ft or less.

Saturday

SSE wind around 10 kt. Mostly sunny. Waves 1 ft or less.

Saturday Night

S wind around 10 kt. Partly cloudy. Waves 1 ft or less.

Sunday

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

Sunday Night

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

Monday

N wind 5 to 10 kt. Partly sunny. Waves 1 to 2 ft.

Monday Night

NNE wind around 15 kt. Mostly cloudy. Waves around 3 ft.

Tuesday

ESE wind 5 to 10 kt. Mostly cloudy. Waves 1 to 3 ft.

Tuesday Night

E wind 5 to 10 kt becoming S after midnight. Mostly 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.