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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Friday
High: 45 °F
NNE 10kt
1ft
Friday Night
Low: 39 °F
Light Wind
1ft
Saturday
High: 50 °F
Light Wind
< 1ft
Saturday Night
Low: 43 °F
SSW 10kt
< 1ft
Sunday
High: 63 °F
SW 15kt
1ft
Sunday Night
Low: 50 °F
SSW 10kt
< 1ft
Monday
High: 71 °F
SW 15kt
< 1ft
Monday Night
Low: 48 °F
W 15kt
< 1ft
Tuesday
High: 57 °F
N 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: 1:21 am CDT May 1, 2026
Forecast Valid: 3am CDT May 1, 2026-6pm CDT May 7, 2026

View Nearby Observations

Detailed Forecast

Friday

NNE wind around 10 kt, with gusts as high as 15 kt. A slight chance of showers before 7am, then a slight chance of showers after 3pm. Waves around 1 ft.

Friday Night

Variable winds 5 kt or less. A slight chance of showers before 7pm. Waves around 1 ft.

Saturday

Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

Saturday Night

SE wind 5 to 10 kt becoming SSW after midnight. Partly cloudy. Waves 1 ft or less.

Sunday

SW wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers. Waves around 1 ft.

Sunday Night

SSW wind around 10 kt. A slight chance of showers. Waves 1 ft or less.

Monday

SW wind 10 to 15 kt, with gusts as high as 20 kt. A chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Monday Night

W wind 10 to 15 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

Tuesday

NNW wind around 10 kt becoming NNE in the afternoon. 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.