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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 67 °F
⇑S 20kt
4ft

Small Craft Advisory
Tonight
Low: 60 °F
WSW 15kt
1-3ft

Small Craft Advisory
Thursday
High: 73 °F
WNW 15kt
< 1ft

Small Craft Advisory
Thursday Night
Low: 61 °F
WNW 10kt
< 1ft
Juneteenth
High: 75 °F
WNW 10kt
< 1ft
Friday Night
Low: 63 °F
Light Wind
< 1ft
Saturday
High: 80 °F
WNW 10kt
< 1ft
Saturday Night
Low: 65 °F
Light Wind
< 1ft
Sunday
High: 71 °F
E 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: 5:36 am CDT Jun 17, 2026
Forecast Valid: 6am CDT Jun 17, 2026-6pm CDT Jun 23, 2026

View Nearby Observations

Detailed Forecast

Today

WSW wind 5 to 10 kt becoming S 15 to 20 kt in the morning. Winds could gust as high as 30 kt. A chance of showers before 11am, then showers and possibly a thunderstorm between 11am and 4pm, then showers and thunderstorms after 4pm. Some of the storms could be severe and produce heavy rainfall. Waves 1 ft or less building to 4 ft.

Tonight

WSW wind 10 to 15 kt, with gusts as high as 25 kt. Showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 10pm. Some of the storms could be severe. Waves 1 to 3 ft.

Thursday

WNW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy, then gradually becoming sunny. Waves 1 ft or less.

Thursday Night

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

Juneteenth

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

Friday Night

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

Saturday

W wind 5 to 10 kt becoming NW in the afternoon. Mostly sunny. Waves 1 ft or less.

Saturday Night

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

Sunday

E wind 10 to 15 kt, with gusts as high as 20 kt. Showers likely and possibly a thunderstorm. 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.