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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Monday
High: 48 °F
NW 15kt
1ft

Small Craft Advisory
Monday Night
Low: 40 °F
N 15kt
5ft

Small Craft Advisory
Tuesday
High: 37 °F
NNE 15kt
2-4ft

Small Craft Advisory
Tuesday Night
Low: 30 °F
SSE 10kt
1ft
Wednesday
High: 62 °F
S 15kt
2ft
Wednesday Night
Low: 34 °F
S 15kt
2ft
Thursday
High: 65 °F
SSW 15kt
< 1ft
Thursday Night
Low: 52 °F
N 10kt
< 1ft
Friday
High: 49 °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 Apr 6, 2026
Forecast Valid: 1am CDT Apr 6, 2026-6pm CDT Apr 12, 2026

View Nearby Observations

Detailed Forecast

Monday

NW wind 10 to 15 kt, with gusts as high as 25 kt. Partly sunny. Waves around 1 ft.

Monday Night

N wind around 15 kt, with gusts as high as 20 kt. A slight chance of rain showers before 10pm, then a slight chance of rain and snow showers between 10pm and 11pm, then a slight chance of snow showers after 11pm. Waves 2 ft building to 5 ft.

Tuesday

NNE wind 10 to 15 kt. Mostly sunny. Waves 2 to 4 ft.

Tuesday Night

E wind around 10 kt becoming SSE after midnight. Winds could gust as high as 15 kt. Increasing clouds. Waves around 1 ft.

Wednesday

S wind around 15 kt, with gusts as high as 25 kt. Mostly cloudy. Waves around 2 ft.

Wednesday Night

S wind around 15 kt, with gusts as high as 25 kt. A chance of showers, mainly after 1am. Waves around 2 ft.

Thursday

SSW wind 10 to 15 kt, with gusts as high as 20 kt. A chance of showers. Waves 1 ft or less.

Thursday Night

SSW wind 5 to 10 kt becoming N after midnight. Showers likely. Waves 1 ft or less.

Friday

N wind 5 to 10 kt. A chance of showers. 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.