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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 36 °F
N 20kt
2-4ft

Small Craft Advisory
Tonight
Low: 33 °F
ENE 10kt
1-2ft
Tuesday
High: 51 °F
S 10kt
< 1ft
Tuesday Night
Low: 40 °F
SSE 10kt
< 1ft
Wednesday
High: 63 °F
SSW 10kt
< 1ft
Wednesday Night
Low: 50 °F
SSW 10kt
< 1ft
Thursday
High: 77 °F
NNW 15kt
< 1ft
Thursday Night
Low: 33 °F
N 25kt
9ft
Friday
High: 37 °F
N 25kt⇓
9ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:21 am CDT Mar 23, 2026
Forecast Valid: 10am CDT Mar 23, 2026-6pm CDT Mar 29, 2026

View Nearby Observations

Detailed Forecast

Today

N wind 10 to 20 kt, with gusts as high as 25 kt. Sunny. Waves 2 to 4 ft.

Tonight

ENE wind 5 to 10 kt becoming S after midnight. Partly cloudy. Waves 1 to 2 ft.

Tuesday

S wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Tuesday Night

SSE wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Wednesday

SSW wind around 10 kt. Partly sunny. Waves 1 ft or less.

Wednesday Night

SSW wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Thursday

SSW wind 10 to 15 kt becoming NNW in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Thursday Night

N wind 15 to 25 kt. A chance of showers before 1am. Waves 1 ft building to 9 ft.

Friday

N wind 20 to 25 kt decreasing to 10 to 15 kt in the afternoon. Partly sunny. Waves 9 ft subsiding to 5 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.