For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 81 °F
Light Wind
< 1ft
Tonight
Low: 72 °F
Light Wind
< 1ft
Saturday
High: 78 °F
Light Wind
< 1ft
Saturday Night
Low: 70 °F
Light Wind
< 1ft
Sunday
High: 82 °F
S 10kt
< 1ft
Sunday Night
Low: 73 °F
SSW 10kt
< 1ft
Monday
High: 81 °F
S 10kt
< 1ft
Monday Night
Low: 72 °F
SSW 10kt
< 1ft
Tuesday
High: 78 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:51 am CDT Aug 7, 2026
Forecast Valid: 10am CDT Aug 7, 2026-6pm CDT Aug 13, 2026

View Nearby Observations

Detailed Forecast

Today

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

Tonight

Variable winds 5 kt or less. A slight chance of showers and thunderstorms between 2am and 3am, then a slight chance of showers after 3am. Waves 1 ft or less.

Saturday

Variable winds 5 kt or less. Winds could gust as high as 10 kt. Mostly sunny. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Sunday

S wind 5 to 10 kt, with gusts as high as 15 kt. A chance of showers, with thunderstorms also possible after 10am. Waves 1 ft or less.

Sunday Night

SSW wind 5 to 10 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

Monday

S wind 5 to 10 kt, with gusts as high as 15 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

Monday Night

SSW wind around 10 kt becoming W after midnight. Showers and thunderstorms likely, mainly before 1am. Waves 1 ft or less.

Tuesday

Variable winds 5 kt or less. Winds could gust as high as 10 kt. Showers likely and possibly a thunderstorm before 1pm, then 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.