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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 72 °F
WNW 15kt
< 1ft

Small Craft Advisory
Tonight
Low: 46 °F
NNE 10kt
1ft
Sunday
High: 53 °F
E 10kt
< 1ft
Sunday Night
Low: 44 °F
Light Wind
< 1ft
Monday
High: 51 °F
NE 10kt
< 1ft
Monday Night
Low: 45 °F
ENE 10kt
< 1ft
Tuesday
High: 68 °F
⇑SSE 20kt
1-2ft
Tuesday Night
Low: 51 °F
SSW 15kt
< 1ft
Wednesday
High: 58 °F
NNW 15kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:56 am CDT May 9, 2026
Forecast Valid: 8am CDT May 9, 2026-6pm CDT May 15, 2026

View Nearby Observations

Detailed Forecast

Today

WSW wind 10 to 15 kt becoming NW in the afternoon. Winds could gust as high as 30 kt. A slight chance of showers after 4pm. Waves 1 ft or less.

Tonight

NNE wind 5 to 10 kt becoming NNW after midnight. Winds could gust as high as 20 kt. A slight chance of showers before 8pm. Waves around 1 ft.

Sunday

N wind 5 to 10 kt becoming E in the afternoon. Sunny. Waves 1 ft or less.

Sunday Night

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

Monday

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

Monday Night

ENE wind 5 to 10 kt becoming SSE after midnight. Mostly clear. Waves 1 ft or less.

Tuesday

SSE wind 10 to 15 kt increasing to 15 to 20 kt in the afternoon. Winds could gust as high as 25 kt. A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.

Tuesday Night

SSW wind 10 to 15 kt becoming WNW after midnight. Winds could gust as high as 20 kt. Showers likely. Waves 1 ft or less.

Wednesday

NNW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Waves 1 to 2 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.