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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 75 °F
NNW 15kt
2-3ft
Tonight
Low: 68 °F
NNW 10kt
2-3ft
Sunday
High: 72 °F
NNW 15kt
3-4ft
Sunday Night
Low: 69 °F
N 10kt
2-3ft
Monday
High: 74 °F
Light Wind
1-2ft
Monday Night
Low: 70 °F
Light Wind
< 1ft
Tuesday
High: 79 °F
Light Wind
< 1ft
Tuesday Night
Low: 72 °F
SSW 10kt
< 1ft
Wednesday
High: 81 °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: 9:46 am CDT Aug 22, 2026
Forecast Valid: 10am CDT Aug 22, 2026-6pm CDT Aug 28, 2026

View Nearby Observations

Detailed Forecast

Today

NNW wind 10 to 15 kt. A slight chance of showers and thunderstorms after 4pm. A slight chance of waterspouts after 4pm. Waves 2 to 3 ft.

Tonight

NNW wind around 10 kt. A slight chance of showers and thunderstorms before midnight, then a slight chance of showers after 3am. A slight chance of waterspouts. Waves 2 to 3 ft.

Sunday

NNW wind 10 to 15 kt. Sunny. Waves 3 to 4 ft.

Sunday Night

N wind 5 to 10 kt. Partly cloudy. Waves 2 to 3 ft.

Monday

Variable winds 5 kt or less. Mostly sunny. Waves 1 to 2 ft.

Monday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Tuesday

Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

Tuesday Night

SE wind 5 to 10 kt becoming SSW after midnight. Partly cloudy. Waves 1 ft or less.

Wednesday

SSW wind around 10 kt. A chance of showers and thunderstorms after 1pm. 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.