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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 66 °F
SSW 25kt
3ft

Gale Warning
Tonight
Low: 47 °F
SSW 25kt⇓
1-3ft

Gale Warning
Friday
High: 51 °F
NE 10kt
< 1ft
Friday Night
Low: 44 °F
NE 10kt
1-2ft
Saturday
High: 60 °F
WSW 15kt
1ft
Saturday Night
Low: 37 °F
W 15kt
1ft
Sunday
High: 49 °F
WNW 15kt
1ft
Sunday Night
Low: 39 °F
W 10kt
< 1ft
Monday
High: 51 °F
NW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:20 am CDT Apr 2, 2026
Forecast Valid: 8am CDT Apr 2, 2026-6pm CDT Apr 8, 2026

View Nearby Observations

Detailed Forecast

Today

ESE wind 15 to 25 kt becoming SSW in the afternoon. Winds could gust as high as 35 kt. Showers and possibly a thunderstorm. Patchy fog before noon. Waves around 3 ft.

Tonight

SSW wind 20 to 25 kt becoming WSW 15 to 20 kt after midnight. Winds could gust as high as 35 kt. Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 3am. Waves 1 to 3 ft.

Friday

W wind 5 to 10 kt becoming NE in the afternoon. A chance of showers after 1pm. Waves 1 ft or less.

Friday Night

NE wind around 10 kt becoming S after midnight. Winds could gust as high as 15 kt. Showers and possibly a thunderstorm. Waves 1 to 2 ft.

Saturday

SSW wind 10 to 15 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. A chance of showers, mainly before 1pm. Waves around 1 ft.

Saturday Night

W wind around 15 kt, with gusts as high as 20 kt. Mostly cloudy. Waves around 1 ft.

Sunday

WNW wind 10 to 15 kt. Partly sunny. Waves around 1 ft.

Sunday Night

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

Monday

NW wind around 10 kt. Mostly sunny. 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.