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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 74 °F
Light Wind
< 1ft
Wednesday
High: 90 °F
S 10kt
< 1ft
Wednesday Night
Low: 70 °F
W 10kt
< 1ft
Thursday
High: 72 °F
N 15kt
1-2ft
Thursday Night
Low: 66 °F
N 15kt
3ft
Friday
High: 75 °F
NE 10kt
1-2ft
Friday Night
Low: 69 °F
Light Wind
< 1ft
Saturday
High: 84 °F
S 10kt
< 1ft
Saturday Night
Low: 70 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:07 pm CDT Jul 15, 2025
Forecast Valid: 10pm CDT Jul 15, 2025-6pm CDT Jul 22, 2025

View Nearby Observations

Detailed Forecast

Tonight

Variable winds 5 kt or less. A slight chance of showers between 11pm and 4am. Waves 1 ft or less.

Wednesday

SSW wind 5 to 10 kt becoming SSE in the afternoon. Winds could gust as high as 15 kt. A chance of showers and thunderstorms, mainly after 4pm. Waves 1 ft or less.

Wednesday Night

W wind around 10 kt, with gusts as high as 15 kt. Showers and thunderstorms likely, mainly between 7pm and 1am. Waves 1 ft or less.

Thursday

WNW wind 10 to 15 kt becoming N in the afternoon. A slight chance of showers and thunderstorms. Waves 1 to 2 ft.

Thursday Night

N wind 10 to 15 kt. Mostly cloudy. Waves around 3 ft.

Friday

NE wind 5 to 10 kt. Mostly sunny. Waves 1 to 2 ft.

Friday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms after 1am. Waves 1 ft or less.

Saturday

S wind 5 to 10 kt. Showers and thunderstorms likely. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. A chance of showers and thunderstorms. 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.