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17NM ENE Chicago IL

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 10:13 am CDT Mar 17, 2026
Forecast Valid: 10am CDT Mar 17, 2026-6pm CDT Mar 23, 2026

Today

WNW wind 10 to 15 kt becoming WSW in the afternoon. Widespread freezing spray before 11am. Partly sunny. Waves 3 to 5 ft.

Tonight

SW wind 10 to 20 kt. Snow, mainly after 1am. Waves 2 to 3 ft.

Wednesday

SSW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. A chance of snow, mainly before 10am. Waves 1 to 3 ft.

Wednesday Night

SSW wind 5 to 10 kt. A slight chance of rain after 1am. Waves 1 ft or less.

Thursday

S wind 5 to 10 kt becoming N in the afternoon. A slight chance of rain before 1pm. Waves 1 ft or less.

Thursday Night

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

Friday

SW wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Friday Night

W wind around 10 kt becoming N after midnight. Mostly cloudy. Waves 1 ft or less building to 3 ft.

Saturday

SSW wind around 10 kt. Mostly sunny. Waves 1 to 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.