Hazardous Weather Conditions

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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Wednesday
High: 13 °C
N 30km/h⇓
< 1m

Small Craft Advisory
Wednesday Night
Low: 8 °C
NNE 15km/h
< 1m
Thursday
High: 13 °C
N 10km/h
< 1m
Thursday Night
Low: 10 °C
SSE 20km/h
< 1m
Friday
High: 24 °C
S 30km/h
< 1m
Friday Night
Low: 14 °C
S 20km/h
< 1m
Saturday
High: 28 °C
SW 15km/h
< 1m
Saturday Night
Low: 14 °C
SE 10km/h
< 1m
Sunday
High: 26 °C
SSE 20km/h
< 1m

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:26 am CDT May 13, 2026
Forecast Valid: 4am CDT May 13, 2026-6pm CDT May 19, 2026

View Nearby Observations

Detailed Forecast

Wednesday

N wind 25 to 30 km/h decreasing to 20 to 25 km/h in the afternoon. Winds could gust as high as 40 km/h. Mostly cloudy. Waves 1 m or less.

Wednesday Night

NNE wind 10 to 15 km/h becoming NW after midnight. Winds could gust as high as 30 km/h. Mostly cloudy during the early evening, then gradual clearing. Waves 1 m or less.

Thursday

NW wind around 10 km/h becoming ENE in the afternoon. Winds could gust as high as 15 km/h. Sunny. Waves 1 m or less.

Thursday Night

ESE wind 10 to 20 km/h becoming SSE after midnight. Winds could gust as high as 25 km/h. A slight chance of showers after 1am. Waves 1 m or less.

Friday

S wind 25 to 30 km/h, with gusts as high as 40 km/h. A chance of showers before 1pm. Waves 1 m or less.

Friday Night

S wind 10 to 20 km/h, with gusts as high as 30 km/h. A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Waves 1 m or less.

Saturday

SW wind 10 to 15 km/h becoming SSE in the afternoon. Winds could gust as high as 25 km/h. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Waves 1 m or less.

Saturday Night

SE wind around 10 km/h, with gusts as high as 20 km/h. Showers likely and possibly a thunderstorm. Waves 1 m or less.

Sunday

SSE wind 15 to 20 km/h, with gusts as high as 30 km/h. A chance of showers. Waves 1 m 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.