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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 46 °F
SW 10kt
< 1ft
Sunday
High: 66 °F
SSW 20kt
1ft

Small Craft Advisory
Sunday Night
Low: 49 °F
SW 10kt
< 1ft
Monday
High: 75 °F
SW 15kt
< 1ft
Monday Night
Low: 47 °F
SW 10kt
< 1ft
Tuesday
High: 54 °F
NNE 10kt
1ft
Tuesday Night
Low: 43 °F
NNE 10kt
< 1ft
Wednesday
High: 49 °F
N 10kt
1ft
Wednesday Night
Low: 43 °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: 12:21 am CDT May 3, 2026
Forecast Valid: 12am CDT May 3, 2026-6pm CDT May 9, 2026

View Nearby Observations

Detailed Forecast

Overnight

SW wind around 10 kt, with gusts as high as 15 kt. Partly cloudy. Waves 1 ft or less.

Sunday

SSW wind 15 to 20 kt, with gusts as high as 30 kt. Scattered showers, mainly before 1pm. Waves around 1 ft.

Sunday Night

SW wind 5 to 10 kt, with gusts as high as 20 kt. Mostly clear. Waves 1 ft or less.

Monday

SW wind 10 to 15 kt. A slight chance of showers after 4pm. Waves 1 ft or less.

Monday Night

SW wind around 10 kt becoming NNW after midnight. Winds could gust as high as 15 kt. A slight chance of showers and thunderstorms before 7pm, then showers likely and possibly a thunderstorm between 7pm and 1am, then showers likely after 1am. Waves 1 ft or less.

Tuesday

NNE wind around 10 kt. Showers likely. Waves around 1 ft.

Tuesday Night

NNE wind 5 to 10 kt becoming NW after midnight. A slight chance of showers before 1am. Waves 1 ft or less.

Wednesday

N wind 5 to 10 kt. Partly sunny. Waves around 1 ft.

Wednesday Night

Variable winds 5 kt or less. Mostly cloudy. 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.