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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: 3:11 pm CST Feb 4, 2026
Forecast Valid: 7pm CST Feb 4, 2026-6pm CST Feb 11, 2026

Tonight

WNW wind 5 to 10 kt becoming SSW after midnight. Mostly cloudy. Waves 1 ft or less.

Thursday

SSW wind around 10 kt, with gusts as high as 20 kt. Scattered snow showers, mainly between 9am and 3pm. Waves 1 ft or less.

Thursday Night

SW wind around 10 kt, with gusts as high as 15 kt. A chance of snow showers after midnight, mixing with sleet after 3am. Waves 1 ft or less.

Friday

WSW wind 10 to 20 kt becoming N in the afternoon. Winds could gust as high as 30 kt. A chance of snow showers, mainly before noon. Waves 1 to 2 ft.

Friday Night

N wind 15 to 20 kt, with gusts as high as 25 kt. Mostly cloudy. Waves 3 to 5 ft.

Saturday

NNW wind 5 to 10 kt becoming SE in the afternoon. Partly sunny. Waves 5 ft subsiding to 2 ft.

Saturday Night

SSE wind 5 to 10 kt. A slight chance of snow before midnight. Waves 1 to 2 ft.

Sunday

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

Sunday Night

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

Waves omitted due to extensive ice coverage

*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.