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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: 7:34 am CST Feb 24, 2026
Forecast Valid: 9am CST Feb 24, 2026-6pm CST Mar 2, 2026

Today

S wind 20 to 25 kt, with gusts as high as 35 kt. A chance of sprinkles after 5pm. Waves 3 to 5 ft.

Tonight

SW wind around 20 kt becoming WNW after midnight. A chance of rain before 7pm, then a slight chance of snow between 7pm and 8pm. Waves 3 to 4 ft.

Wednesday

WNW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Mostly sunny. Waves 4 ft subsiding to 1 ft.

Wednesday Night

WNW wind around 10 kt becoming NE after midnight. A slight chance of snow. Waves 1 ft or less.

Thursday

NE wind 5 to 10 kt becoming ESE in the afternoon. A slight chance of snow before noon. Waves 1 ft or less.

Thursday Night

SE wind 5 to 10 kt becoming SSW in the evening. Partly cloudy. Waves 1 ft or less.

Friday

SSW wind 10 to 15 kt. Sunny. Waves 1 to 2 ft.

Friday Night

SSW wind 15 to 20 kt becoming NW after midnight. Partly cloudy. Waves 2 to 3 ft.

Saturday

NW wind 15 to 20 kt becoming N in the afternoon. Partly sunny. Waves 3 to 5 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.