For More Weather Information:

Chicago, IL Local Forecast Office

11NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 62 °F
S 15kt
5ft

Gale Warning
Tonight
Low: 44 °F
S 20kt
5ft

Gale Warning
Friday
High: 51 °F
ENE 10kt
< 1ft
Friday Night
Low: 42 °F
NE 10kt
1-2ft
Saturday
High: 54 °F
WSW 15kt
2ft
Saturday Night
Low: 38 °F
W 15kt
2ft
Sunday
High: 44 °F
WNW 15kt
1-2ft
Sunday Night
Low: 40 °F
W 10kt
< 1ft
Monday
High: 46 °F
WNW 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: 4:46 pm CDT Apr 2, 2026
Forecast Valid: 4pm CDT Apr 2, 2026-6pm CDT Apr 9, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 15 kt, with gusts as high as 35 kt. Showers and possibly a thunderstorm. Waves around 5 ft.

Tonight

S wind 15 to 20 kt becoming W after midnight. Winds could gust as high as 30 kt. Showers and thunderstorms likely before 1am, then isolated showers between 1am and 3am. Some of the storms could be severe. Waves 5 ft subsiding to 2 ft.

Friday

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

Friday Night

NE wind around 10 kt becoming S after midnight. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Waves 1 to 2 ft.

Saturday

SSW wind around 15 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms, then showers likely after 7am. Waves around 2 ft.

Saturday Night

W wind around 15 kt, with gusts as high as 20 kt. Mostly cloudy. Waves around 2 ft.

Sunday

WNW wind 10 to 15 kt. Partly sunny. Waves 1 to 2 ft.

Sunday Night

W wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.

Monday

WNW wind 5 to 15 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.