For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 72 °F
E 10kt
1ft
Friday
High: 75 °F
E 10kt
1ft
Friday Night
Low: 73 °F
ENE 10kt
1ft
Saturday
High: 82 °F
SE 10kt
1ft
Saturday Night
Low: 76 °F
SSW 10kt
< 1ft
Sunday
High: 80 °F
Light Wind
< 1ft
Sunday Night
Low: 71 °F
NNW 10kt
< 1ft
Monday
High: 75 °F
N 10kt
1ft
Monday Night
Low: 68 °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: 9:46 pm CDT Aug 13, 2026
Forecast Valid: 11pm CDT Aug 13, 2026-6pm CDT Aug 20, 2026

View Nearby Observations

Detailed Forecast

Overnight

E wind around 10 kt. A chance of showers and thunderstorms. Waves around 1 ft.

Friday

E wind 5 to 10 kt becoming NE in the afternoon. A chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 1pm. Waves around 1 ft.

Friday Night

NE wind around 10 kt becoming ESE after midnight. A chance of showers and thunderstorms, mainly after 3am. Waves around 1 ft.

Saturday

SE wind around 10 kt. Showers and possibly a thunderstorm, mainly before 1pm, then a chance of showers and thunderstorms after 1pm. Waves around 1 ft.

Saturday Night

SSW wind 5 to 10 kt becoming W after midnight. Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Waves 1 ft or less.

Sunday

Variable winds 5 kt or less. A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 1 ft or less.

Sunday Night

NNW wind 5 to 10 kt. A slight chance of showers and thunderstorms before 1am. Waves 1 ft or less.

Monday

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

Monday Night

Variable winds 5 kt or less. Mostly clear. 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.