For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 67 °F
SE 10kt
< 1ft
Thursday
High: 71 °F
NE 10kt
< 1ft
Thursday Night
Low: 60 °F
ENE 10kt
< 1ft
Friday
High: 67 °F
NE 10kt
< 1ft
Friday Night
Low: 62 °F
NE 10kt
1-2ft
Saturday
High: 72 °F
NE 10kt
1ft
Saturday Night
Low: 67 °F
NE 10kt
1ft
Sunday
High: 80 °F
SSE 15kt
1ft
Sunday Night
Low: 72 °F
S 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: 5:07 pm CDT Jun 24, 2026
Forecast Valid: 6pm CDT Jun 24, 2026-6pm CDT Jul 1, 2026

View Nearby Observations

Detailed Forecast

Tonight

SE wind 5 to 10 kt becoming WSW in the evening. Showers and thunderstorms likely before midnight, then isolated showers between midnight and 1am. Waves 1 ft or less.

Thursday

W wind 5 to 10 kt becoming ENE in the afternoon. Mostly sunny. Waves 1 ft or less.

Thursday Night

E wind 5 to 10 kt becoming NE in the evening. Mostly cloudy. Waves 1 ft or less.

Friday

NE wind around 10 kt. A chance of showers, mainly after 1pm. Waves 1 ft or less.

Friday Night

NE wind around 10 kt. A slight chance of showers. Waves 1 to 2 ft.

Saturday

NE wind around 10 kt. Mostly sunny. Waves around 1 ft.

Saturday Night

NE wind 5 to 10 kt becoming SE after midnight. A chance of showers and thunderstorms after 1am. Waves around 1 ft.

Sunday

SSE wind 10 to 15 kt. Partly sunny. Waves around 1 ft.

Sunday Night

S wind 10 to 15 kt. Partly cloudy. 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.