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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Thursday
High: 68 °F
WSW 10kt
< 1ft
Thursday Night
Low: 41 °F
NNE 10kt
< 1ft
Friday
High: 46 °F
N 10kt
1ft
Friday Night
Low: 37 °F
NE 10kt
< 1ft
Saturday
High: 49 °F
Light Wind
< 1ft
Saturday Night
Low: 49 °F
SSE 10kt
1-2ft
Sunday
High: 74 °F
SSW 20kt
1-2ft
Sunday Night
Low: 60 °F
SSW 20kt
1-2ft
Monday
High: 76 °F
SSW 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: 1:46 am CDT Apr 9, 2026
Forecast Valid: 2am CDT Apr 9, 2026-6pm CDT Apr 15, 2026

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Detailed Forecast

Thursday

WSW wind 5 to 10 kt becoming SE in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms before 8am, then a slight chance of showers between 8am and 9am. Waves 1 ft or less.

Thursday Night

ENE wind 5 to 10 kt becoming N after midnight. Showers and thunderstorms likely before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers after 4am. Waves 1 ft or less.

Friday

N wind around 10 kt. A chance of showers before 1pm. Waves around 1 ft.

Friday Night

NE wind 5 to 10 kt. Mostly clear. Waves 1 ft or less.

Saturday

Variable winds 5 kt or less. Winds could gust as high as 10 kt. Mostly sunny. Waves 1 ft or less.

Saturday Night

E wind around 10 kt becoming SSE after midnight. Winds could gust as high as 20 kt. A chance of showers. Waves 1 to 2 ft.

Sunday

SSW wind 15 to 20 kt, with gusts as high as 25 kt. A chance of showers after 1pm. Waves 1 to 2 ft.

Sunday Night

SSW wind 15 to 20 kt. Showers likely. Waves 1 to 2 ft.

Monday

SSW wind around 15 kt, with gusts as high as 20 kt. 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.