For More Weather Information:

Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 48 °F
SW 20kt
2-3ft
Wednesday
High: 54 °F
NW 15kt
2-3ft
Wednesday Night
Low: 51 °F
Light Wind
1ft
Thursday
High: 57 °F
Light Wind
1ft
Thursday Night
Low: 51 °F
SSE 10kt
< 1ft
Friday
High: 69 °F
S 15kt
2-3ft
Friday Night
Low: 56 °F
S 15kt
1ft
Saturday
High: 73 °F
SW 10kt
< 1ft
Saturday Night
Low: 55 °F
E 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: 8:37 pm CDT May 12, 2026
Forecast Valid: 9pm CDT May 12, 2026-6pm CDT May 19, 2026

View Nearby Observations

Detailed Forecast

Tonight

SW wind 15 to 20 kt becoming WNW after midnight. Winds could gust as high as 30 kt. A chance of showers and thunderstorms before 10pm. Waves 2 to 3 ft.

Wednesday

NW wind 5 to 15 kt becoming N in the afternoon. Winds could gust as high as 25 kt. Mostly sunny. Waves 2 to 3 ft.

Wednesday Night

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

Thursday

Variable winds 5 kt or less. Sunny. Waves around 1 ft.

Thursday Night

E wind 5 to 10 kt becoming SSE after midnight. A chance of showers after 1am. Waves 1 ft or less.

Friday

S wind around 15 kt, with gusts as high as 20 kt. A chance of showers before 1pm. Waves 2 to 3 ft.

Friday Night

S wind 10 to 15 kt. A slight chance of showers and thunderstorms. Waves around 1 ft.

Saturday

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

Saturday Night

E wind 5 to 10 kt. A chance of showers. 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.