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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 48 °F
W 10kt
1-2ft
Tonight
Low: 42 °F
NE 15kt
2ft
Saturday
High: 50 °F
SSW 15kt
2ft
Saturday Night
Low: 39 °F
W 20kt
2-3ft
Sunday
High: 47 °F
NW 20kt⇓
1-3ft
Sunday Night
Low: 40 °F
W 10kt
1ft
Monday
High: 46 °F
WNW 15kt
1ft
Monday Night
Low: 33 °F
⇑N 25kt
9ft
Tuesday
High: 41 °F
N 20kt⇓
9ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:32 am CDT Apr 3, 2026
Forecast Valid: 6am CDT Apr 3, 2026-6pm CDT Apr 9, 2026

View Nearby Observations

Detailed Forecast

Today

W wind 5 to 10 kt becoming ENE in the afternoon. Winds could gust as high as 15 kt. Mostly cloudy. Waves 1 to 2 ft.

Tonight

NE wind 10 to 15 kt becoming S after midnight. Winds could gust as high as 25 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Waves around 2 ft.

Saturday

SSW wind around 15 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. Showers and thunderstorms before 4pm, then a chance of showers. Waves around 2 ft.

Saturday Night

W wind 15 to 20 kt. A chance of showers before 7pm. Waves 2 to 3 ft.

Sunday

NW wind 15 to 20 kt decreasing to 5 to 10 kt in the afternoon. Partly sunny. Waves 1 to 3 ft.

Sunday Night

W wind 5 to 10 kt. Partly cloudy. Waves around 1 ft.

Monday

WNW wind 10 to 15 kt. Mostly sunny. Waves around 1 ft.

Monday Night

N wind 15 to 20 kt increasing to 20 to 25 kt in the evening. Mostly cloudy. Waves 2 ft building to 9 ft.

Tuesday

N wind 15 to 20 kt decreasing to 5 to 10 kt in the afternoon. Partly sunny. Waves 9 ft subsiding to 4 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.