For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Sunday
High: 77 °F
Light Wind
< 1ft
Sunday Night
Low: 69 °F
Light Wind
< 1ft
Monday
High: 81 °F
Light Wind
< 1ft
Monday Night
Low: 72 °F
Light Wind
< 1ft
Tuesday
High: 83 °F
Light Wind
< 1ft
Tuesday Night
Low: 74 °F
Light Wind
< 1ft
Wednesday
High: 90 °F
SSW 10kt
< 1ft
Wednesday Night
Low: 72 °F
SSW 10kt
< 1ft
Thursday
High: 78 °F
N 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: 1:11 am CDT Jul 13, 2025
Forecast Valid: 2am CDT Jul 13, 2025-6pm CDT Jul 19, 2025

View Nearby Observations

Detailed Forecast

Sunday

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

Sunday Night

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

Monday

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

Monday Night

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

Tuesday

Variable winds 5 kt or less. Winds could gust as high as 10 kt. A slight chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 1am. Waves 1 ft or less.

Wednesday

SSW wind 5 to 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 1 ft or less.

Wednesday Night

SSW wind around 10 kt becoming W after midnight. A chance of showers and thunderstorms. Waves 1 ft or less.

Thursday

NW wind around 10 kt becoming NNE in the afternoon. Winds could gust as high as 15 kt. A chance of showers, with thunderstorms also possible after 1pm. Waves around 1 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.