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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 68 °F
S 15kt
1ft
Tonight
Low: 65 °F
S 15kt
1-2ft
Tuesday
High: 84 °F
SW 20kt
1-2ft
Tuesday Night
Low: 50 °F
NW 15kt
1-2ft
Wednesday
High: 56 °F
NNE 15kt
2ft
Wednesday Night
Low: 47 °F
NNE 15kt
2ft
Thursday
High: 60 °F
ENE 15kt
2ft
Thursday Night
Low: 51 °F
NE 15kt
2ft
Friday
High: 64 °F
NE 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: 3:26 pm CDT May 18, 2026
Forecast Valid: 4pm CDT May 18, 2026-6pm CDT May 25, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 15 kt. Cloudy. Waves around 1 ft.

Tonight

S wind around 15 kt, with gusts as high as 20 kt. A slight chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Waves 1 to 2 ft.

Tuesday

SSW wind 15 to 20 kt becoming W in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms before 9am, then a chance of showers and thunderstorms after 1pm. Waves 1 to 2 ft.

Tuesday Night

NW wind 10 to 15 kt. A slight chance of showers and thunderstorms between 8pm and 9pm. Waves 1 to 2 ft.

Wednesday

NNE wind around 15 kt. Mostly sunny. Waves around 2 ft.

Wednesday Night

NNE wind around 15 kt. Partly cloudy. Waves around 2 ft.

Thursday

ENE wind 10 to 15 kt. Mostly sunny. Waves around 2 ft.

Thursday Night

NE wind around 15 kt becoming E after midnight. Mostly cloudy. Waves around 2 ft.

Friday

NE wind 10 to 15 kt. Showers likely. 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.