For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 38 °F
Light Wind
1ft
Saturday
High: 46 °F
Light Wind
< 1ft
Saturday Night
Low: 45 °F
S 10kt
< 1ft
Sunday
High: 74 °F
SSW 20kt
1-2ft
Sunday Night
Low: 59 °F
SSW 20kt
1-2ft
Monday
High: 77 °F
SW 15kt
1ft
Monday Night
Low: 60 °F
SSW 10kt
1ft
Tuesday
High: 79 °F
SSW 15kt
1ft
Tuesday Night
Low: 58 °F
SW 15kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:51 pm CDT Apr 10, 2026
Forecast Valid: 9pm CDT Apr 10, 2026-6pm CDT Apr 17, 2026

View Nearby Observations

Detailed Forecast

Tonight

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

Saturday

Variable winds 5 kt or less. Increasing clouds. Waves 1 ft or less.

Saturday Night

E wind around 10 kt becoming S after midnight. Winds could gust as high as 15 kt. A chance of showers, mainly after 1am. Waves 1 ft or less.

Sunday

SSW wind 15 to 20 kt. A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Waves 1 to 2 ft.

Sunday Night

SSW wind 15 to 20 kt. Showers and possibly a thunderstorm before 10pm, then showers between 10pm and 1am, then showers likely and possibly a thunderstorm after 1am. Waves 1 to 2 ft.

Monday

SW wind 10 to 15 kt. A chance of showers and thunderstorms, mainly before 1pm. Waves around 1 ft.

Monday Night

SSW wind around 10 kt, with gusts as high as 15 kt. A chance of showers and thunderstorms. Waves around 1 ft.

Tuesday

SSW wind 10 to 15 kt. A chance of showers and thunderstorms after 1pm. Waves around 1 ft.

Tuesday Night

SW wind around 15 kt. Showers likely and possibly a thunderstorm before 1am, then a chance of showers. 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.