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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: 1:41 am CST Feb 26, 2026
Forecast Valid: 2am CST Feb 26, 2026-6pm CST Mar 4, 2026

Thursday

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

Thursday Night

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

Friday

SW wind 10 to 15 kt, with gusts as high as 25 kt. Sunny. Waves 1 ft or less.

Friday Night

SW wind 10 to 15 kt becoming NNW after midnight. Winds could gust as high as 20 kt. Partly cloudy. Waves 1 ft or less.

Saturday

NNE wind 10 to 15 kt. A chance of snow after noon. Waves 1 to 2 ft.

Saturday Night

N wind around 15 kt. A slight chance of snow before midnight. Waves around 3 ft.

Sunday

NE wind 10 to 15 kt. A slight chance of snow after noon. Waves 2 to 3 ft.

Sunday Night

ENE wind 10 to 20 kt. A chance of snow. Waves around 2 ft.

Monday

E wind 10 to 20 kt. Mostly cloudy. Waves around 2 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.