For More Weather Information:

Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 71 °F
NNW 10kt
< 1ft
Sunday
High: 71 °F
N 15kt
1-2ft
Sunday Night
Low: 71 °F
N 15kt
2-3ft
Monday
High: 78 °F
N 10kt
1-2ft
Monday Night
Low: 71 °F
N 10kt
1ft
Tuesday
High: 79 °F
Light Wind
< 1ft
Tuesday Night
Low: 73 °F
Light Wind
< 1ft
Wednesday
High: 84 °F
Light Wind
< 1ft
Wednesday Night
Low: 74 °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: 9:34 pm CDT Jul 4, 2026
Forecast Valid: 9pm CDT Jul 4, 2026-6pm CDT Jul 11, 2026

View Nearby Observations

Detailed Forecast

Tonight

NNW wind 5 to 10 kt. A slight chance of showers and thunderstorms before 3am, then a slight chance of showers after 5am. Patchy fog. Waves 1 ft or less.

Sunday

N wind 10 to 15 kt. A chance of showers and thunderstorms, mainly before 1pm. Patchy fog before 10am. Waves 1 to 2 ft.

Sunday Night

N wind 10 to 15 kt becoming ENE after midnight. Winds could gust as high as 20 kt. Partly cloudy. Waves 2 to 3 ft.

Monday

N wind around 10 kt, with gusts as high as 15 kt. Sunny. Waves 1 to 2 ft.

Monday Night

N wind 5 to 10 kt. Mostly clear. Waves around 1 ft.

Tuesday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Wednesday Night

SSW wind 5 to 10 kt. A chance of showers and thunderstorms after 1am. 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.