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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Sunday
High: 79 °F
WNW 10kt
< 1ft
Sunday Night
Low: 71 °F
NNW 10kt
1-2ft
Monday
High: 75 °F
NNE 10kt
1-2ft
Monday Night
Low: 69 °F
Light Wind
< 1ft
Tuesday
High: 82 °F
SW 10kt
< 1ft
Tuesday Night
Low: 69 °F
Light Wind
< 1ft
Wednesday
High: 73 °F
NNE 10kt
1-2ft
Wednesday Night
Low: 66 °F
NE 10kt
1-2ft
Thursday
High: 76 °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: 2:36 am CDT Aug 16, 2026
Forecast Valid: 2am CDT Aug 16, 2026-6pm CDT Aug 22, 2026

View Nearby Observations

Detailed Forecast

Sunday

WNW wind 5 to 10 kt. A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Sunday Night

WNW wind around 10 kt becoming N after midnight. Mostly cloudy. Waves 1 to 2 ft.

Monday

NNE wind 5 to 10 kt. Mostly sunny. Waves 1 to 2 ft.

Monday Night

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

Tuesday

SW wind 5 to 10 kt. A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Waves 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Winds could gust as high as 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves 1 ft or less.

Wednesday

NNE wind 5 to 10 kt. A chance of showers and thunderstorms before 1pm, then a slight chance of showers. Waves 1 to 2 ft.

Wednesday Night

NE wind 5 to 10 kt. Partly cloudy. Waves 1 to 2 ft.

Thursday

Variable winds 5 kt or less. Mostly sunny. 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.