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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: 1:21 pm CDT Apr 18, 2026
Forecast Valid: 2pm CDT Apr 18, 2026-6pm CDT Apr 24, 2026

This Afternoon

W wind 15 to 20 kt. Partly sunny. Waves 2 to 3 ft.

Tonight

WNW wind 10 to 15 kt becoming WSW after midnight. Winds could gust as high as 25 kt. Mostly cloudy, then gradually becoming clear. Waves 1 to 2 ft.

Sunday

WSW wind around 10 kt becoming NNW in the afternoon. Winds could gust as high as 15 kt. A chance of showers, mainly after 1pm. Waves around 1 ft.

Sunday Night

N wind around 10 kt. Partly cloudy. Waves around 1 ft.

Monday

Variable winds 5 kt or less. Sunny. Waves around 1 ft.

Monday Night

ESE wind 10 to 15 kt becoming S after midnight. Mostly cloudy. Waves 1 to 2 ft.

Tuesday

S wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 to 3 ft.

Tuesday Night

WSW wind around 10 kt becoming NNW after midnight. A chance of sprinkles. Waves 1 ft or less.

Wednesday

NNE wind 5 to 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.