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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: 6:41 am CDT Aug 7, 2026
Forecast Valid: 7am CDT Aug 7, 2026-6pm CDT Aug 13, 2026

Today

Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

Tonight

S wind around 10 kt becoming WSW after midnight. Partly cloudy. Waves 1 ft or less.

Saturday

W wind 5 to 10 kt becoming ENE in the afternoon. Partly sunny, then gradually becoming sunny. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Sunday

S wind around 10 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

Sunday Night

SSW wind around 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves around 1 ft.

Monday

SSW wind around 10 kt becoming SSE in the afternoon. A chance of showers and thunderstorms. Waves around 1 ft.

Monday Night

S wind 10 to 15 kt becoming W after midnight. Showers and thunderstorms likely before 1am, then a chance of showers. Waves around 1 ft.

Tuesday

W wind 5 to 10 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

*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.