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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Friday
High: 63 °F
SSE 15kt
1-2ft
Friday Night
Low: 44 °F
S 20kt
2-3ft
Saturday
High: 47 °F
WNW 15kt
2-3ft
Saturday Night
Low: 41 °F
WNW 15kt
2ft
Sunday
High: 47 °F
W 15kt
1-2ft
Sunday Night
Low: 40 °F
NNE 10kt
1ft
Monday
High: 51 °F
Light Wind
1ft
Monday Night
Low: 46 °F
S 20kt
1-3ft
Tuesday
High: 61 °F
SSW 20kt
4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:21 am CDT Apr 17, 2026
Forecast Valid: 2am CDT Apr 17, 2026-6pm CDT Apr 23, 2026

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Detailed Forecast

Friday

SSE wind 5 to 15 kt, with gusts as high as 20 kt. Widespread dense fog, mainly before 10am. Waves 1 to 2 ft.

Friday Night

S wind 15 to 20 kt becoming WSW after midnight. Showers and thunderstorms before 4am, then a chance of showers. Some of the storms could be severe and produce heavy rainfall. Patchy fog after 10pm. Waves 2 to 3 ft.

Saturday

WNW wind around 15 kt, with gusts as high as 20 kt. A chance of showers, mainly before 7am. Waves 2 to 3 ft.

Saturday Night

WNW wind around 15 kt. Mostly clear. Waves around 2 ft.

Sunday

W wind 10 to 15 kt becoming N in the afternoon. Mostly sunny. Waves 1 to 2 ft.

Sunday Night

NNE wind 5 to 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 20 kt becoming S after midnight. Partly cloudy. Waves 1 to 3 ft.

Tuesday

SSW wind 15 to 20 kt. Partly sunny. Waves 4 ft subsiding to 1 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.