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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 37 °F
WNW 15kt
2-3ft
Wednesday
High: 37 °F
NNW 25kt
7ft
Wednesday Night
Low: 35 °F
NW 25kt
5-7ft
Thursday
High: 44 °F
WNW 10kt
2-4ft
Thursday Night
Low: 39 °F
⇑S 30kt
7ft
Friday
High: 44 °F
WSW 30kt
5-7ft
Friday Night
Low: 34 °F
WNW 20kt
3-4ft
Saturday
High: 42 °F
NE 10kt
2-3ft
Saturday Night
Low: 38 °F
⇑E 25kt
6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:42 pm CDT Mar 10, 2026
Forecast Valid: 9pm CDT Mar 10, 2026-6pm CDT Mar 17, 2026

View Nearby Observations

Detailed Forecast

Tonight

SSE wind 5 to 15 kt becoming NW after midnight. Rain and thunderstorms, mainly before 1am, then rain likely and possibly a thunderstorm after 3am. Some of the storms could be severe. Patchy dense fog. Waves 2 to 3 ft.

Wednesday

NNW wind 15 to 25 kt. Rain likely before 2pm, then a chance of snow. Some thunder is also possible. Patchy fog. Waves 3 ft building to 7 ft.

Wednesday Night

NW wind 15 to 25 kt. A slight chance of snow before 7pm. Waves 5 to 7 ft. occasionally to 9ft.

Thursday

WNW wind around 10 kt becoming SSW in the afternoon. Increasing clouds. Waves 2 to 4 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 after 1am. Waves 2 ft building to 7 ft.

Friday

SW wind 25 to 30 kt becoming WNW in the afternoon. Winds could gust as high as 40 kt. Partly sunny. Waves 5 to 7 ft. occasionally to 9ft.

Friday Night

WNW wind 15 to 20 kt. Mostly cloudy. Waves 3 to 4 ft.

Saturday

NE wind around 10 kt becoming SE in the afternoon. A chance of snow. Waves 2 to 3 ft.

Saturday Night

E wind 15 to 20 kt increasing to 20 to 25 kt after midnight. Rain likely, mainly after 1am. Waves 2 ft building to 6 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.