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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 68 °F
S 15kt
1ft
Tonight
Low: 54 °F
SSW 10kt
< 1ft
Thursday
High: 72 °F
⇑N 20kt
1-2ft
Thursday Night
Low: 33 °F
N 25kt
9ft
Friday
High: 37 °F
N 20kt
7ft
Friday Night
Low: 31 °F
Light Wind
1-2ft
Saturday
High: 49 °F
WSW 10kt
< 1ft
Saturday Night
Low: 39 °F
S 10kt
< 1ft
Sunday
High: 59 °F
S 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: 6:46 am CDT Mar 25, 2026
Forecast Valid: 7am CDT Mar 25, 2026-6pm CDT Mar 31, 2026

View Nearby Observations

Detailed Forecast

Today

S wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves around 1 ft.

Tonight

SSW wind around 10 kt. A slight chance of showers and thunderstorms between 10pm and 4am. Waves 1 ft or less.

Thursday

SSW wind 10 to 15 kt becoming N 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. Showers and thunderstorms likely after 1pm. Waves 1 to 2 ft.

Thursday Night

N wind 20 to 25 kt, with gusts as high as 35 kt. A chance of showers, mainly before midnight. Waves 5 ft building to 9 ft.

Friday

N wind 10 to 20 kt, with gusts as high as 30 kt. Partly sunny. Waves 7 ft subsiding to 3 ft.

Friday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 to 2 ft.

Saturday

WNW wind 5 to 10 kt becoming SW in the afternoon. Sunny. Waves 1 ft or less.

Saturday Night

S wind around 10 kt. Partly cloudy. Waves 1 ft or less.

Sunday

S wind around 10 kt. Partly 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.