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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Monday
High: 61 °F
SE 20kt
2-4ft

Small Craft Advisory
Monday Night
Low: 51 °F
SSE 20kt
4ft

Small Craft Advisory
Tuesday
High: 62 °F
W 15kt
< 1ft

Small Craft Advisory
Tuesday Night
Low: 47 °F
NNE 10kt
< 1ft
Wednesday
High: 54 °F
N 10kt
1ft
Wednesday Night
Low: 44 °F
Light Wind
1ft
Thursday
High: 55 °F
Light Wind
< 1ft
Thursday Night
Low: 42 °F
Light Wind
< 1ft
Friday
High: 51 °F
NNE 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: 2:41 am CDT Apr 27, 2026
Forecast Valid: 3am CDT Apr 27, 2026-6pm CDT May 3, 2026

View Nearby Observations

Detailed Forecast

Monday

SE wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers after 3pm. Waves 2 to 4 ft.

Monday Night

SSE wind 15 to 20 kt becoming SW after midnight. Winds could gust as high as 30 kt. Showers and possibly a thunderstorm before midnight, then a slight chance of showers between midnight and 1am. Waves 4 ft subsiding to 1 ft.

Tuesday

W wind 5 to 15 kt. Partly sunny. Waves 1 ft or less.

Tuesday Night

NNE wind 5 to 10 kt. A chance of showers, mainly after 1am. Waves 1 ft or less.

Wednesday

N wind around 10 kt, with gusts as high as 15 kt. Partly sunny. Waves around 1 ft.

Wednesday Night

Variable winds 5 kt or less. Winds could gust as high as 10 kt. Mostly clear. Waves around 1 ft.

Thursday

Variable winds 5 kt or less. Winds could gust as high as 10 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

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

Friday

NNE wind around 10 kt. Mostly sunny. Waves around 1 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.