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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 35 °F
NNW 20kt
5ft

Gale Warning
Saturday
High: 35 °F
E 10kt
2-4ft
Saturday Night
Low: 36 °F
ESE 20kt
2-4ft
Sunday
High: 50 °F
SSE 25kt
4-5ft
Sunday Night
Low: 27 °F
WNW 25kt
13ft
Monday
High: 30 °F
WNW 30kt
15ft
Monday Night
Low: 17 °F
WNW 30kt
11ft
Tuesday
High: 28 °F
WNW 20kt⇓
7ft
Tuesday Night
Low: 24 °F
⇑S 20kt
2-4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:57 pm CDT Mar 13, 2026
Forecast Valid: 12am CDT Mar 14, 2026-6pm CDT Mar 20, 2026

View Nearby Observations

Detailed Forecast

Overnight

NNW wind 15 to 20 kt. Partly cloudy. Waves around 5 ft.

Saturday

N wind 5 to 10 kt becoming ESE in the afternoon. Cloudy. Waves 2 to 4 ft.

Saturday Night

ESE wind 15 to 20 kt, with gusts as high as 30 kt. A chance of rain, mainly between 1am and 4am. Waves 2 to 4 ft.

Sunday

SSE wind 20 to 25 kt. Rain likely, mainly after 1pm. Waves 4 to 5 ft.

Sunday Night

S wind around 25 kt becoming WNW after midnight. Winds could gust as high as 35 kt. Rain before 1am, then snow, possibly mixed with rain. Some thunder is also possible. Waves 5 ft building to 13 ft.

Monday

WNW wind around 30 kt, with gusts as high as 35 kt. Snow, possibly mixed with rain, becoming all snow after 7am. Widespread freezing spray after 9am. Waves 15 ft subsiding to 12 ft.

Monday Night

WNW wind 25 to 30 kt, with gusts as high as 35 kt. A chance of snow before 1am. Widespread freezing spray. Waves 11 ft subsiding to 8 ft.

Tuesday

WNW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Widespread freezing spray before noon. Partly sunny. Waves 7 ft subsiding to 3 ft.

Tuesday Night

WSW wind 10 to 15 kt becoming S 15 to 20 kt after midnight. A chance of snow. Waves 2 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.