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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 34 °F
NW 15kt
4-6ft

Gale Warning
Thursday
High: 42 °F
W 10kt
1-3ft
Thursday Night
Low: 41 °F
⇑S 30kt
8ft
Friday
High: 46 °F
W 35kt
6-7ft
Friday Night
Low: 35 °F
WNW 25kt⇓
3-4ft
Saturday
High: 40 °F
N 10kt
1-2ft
Saturday Night
Low: 37 °F
E 20kt
5ft
Sunday
High: 50 °F
S 25kt
5-6ft
Sunday Night
Low: 25 °F
NW 40kt
16ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:42 pm CDT Mar 11, 2026
Forecast Valid: 11pm CDT Mar 11, 2026-6pm CDT Mar 18, 2026

View Nearby Observations

Detailed Forecast

Overnight

NW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly clear. Waves 4 to 6 ft. occasionally to 8ft.

Thursday

W wind 5 to 10 kt becoming S in the afternoon. Winds could gust as high as 15 kt. Increasing clouds. Waves 1 to 3 ft.

Thursday Night

S wind 15 to 20 kt increasing to 25 to 30 kt after midnight. Winds could gust as high as 40 kt. A chance of rain, mainly between midnight and 5am. Waves 1 ft building to 8 ft.

Friday

W wind 30 to 35 kt. Partly sunny. Waves 6 to 7 ft. occasionally to 9ft.

Friday Night

WNW wind 20 to 25 kt decreasing to 10 to 15 kt after midnight. Mostly cloudy. Waves 3 to 4 ft.

Saturday

N wind 5 to 10 kt becoming E in the afternoon. A slight chance of snow after 1pm. Waves 1 to 2 ft.

Saturday Night

E wind 10 to 20 kt. Rain likely, possibly mixed with snow, mainly after 1am. Waves 1 ft building to 5 ft.

Sunday

ESE wind 20 to 25 kt becoming S in the afternoon. Winds could gust as high as 35 kt. Rain. Waves 5 to 6 ft. occasionally to 8ft.

Sunday Night

NW wind 30 to 40 kt. Rain and snow likely before 1am, then a chance of snow. Widespread freezing spray after 3am. Waves 8 ft building to 16 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.