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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Sunday
High: 55 °F
S 25kt
4-5ft

Gale Warning
Sunday Night
Low: 26 °F
W 25kt
8ft

Gale Warning
Monday
High: 30 °F
WNW 30kt
10ft

Gale Warning
Monday Night
Low: 19 °F
WNW 30kt
7-9ft

Gale Warning
Tuesday
High: 30 °F
WNW 20kt⇓
6ft
Tuesday Night
Low: 26 °F
⇑S 20kt
2-3ft
Wednesday
High: 42 °F
S 20kt⇓
4ft
Wednesday Night
Low: 38 °F
S 10kt
< 1ft
Thursday
High: 46 °F
SSW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:34 am CDT Mar 15, 2026
Forecast Valid: 3am CDT Mar 15, 2026-6pm CDT Mar 21, 2026

View Nearby Observations

Detailed Forecast

Sunday

S wind 20 to 25 kt, with gusts as high as 35 kt. A chance of rain before 1pm, then a chance of rain and thunderstorms between 1pm and 3pm, then rain likely and possibly a thunderstorm after 3pm. Waves 4 to 5 ft.

Sunday Night

S wind around 25 kt becoming W after midnight. Winds could gust as high as 30 kt. Rain before 2am, then rain and snow likely between 2am and 3am, then snow likely after 3am. Some thunder is also possible. Waves 5 ft building to 8 ft.

Monday

WNW wind around 30 kt, with gusts as high as 35 kt. Snow. Widespread freezing spray between 8am and 11am, then Widespread freezing spray between noon and 1pm, then Widespread freezing spray after 4pm. Waves around 10 ft.

Monday Night

WNW wind 25 to 30 kt. A chance of snow before 1am. Widespread freezing spray. Waves 7 to 9 ft. occasionally to 12ft.

Tuesday

WNW wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Widespread freezing spray before 10am. Partly sunny. Waves 6 ft subsiding to 2 ft.

Tuesday Night

S wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Snow likely, mainly after 1am. Waves 2 to 3 ft.

Wednesday

S wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. A slight chance of snow before 1pm. Waves 4 ft subsiding to 1 ft.

Wednesday Night

S wind around 10 kt. Mostly cloudy. Waves 1 ft or less.

Thursday

SSW wind 5 to 10 kt becoming N in the afternoon. Mostly sunny. 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.