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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 52 °F
N 15kt
1-2ft

Small Craft Advisory
Tonight
Low: 43 °F
Light Wind
1ft
Thursday
High: 56 °F
Light Wind
< 1ft
Thursday Night
Low: 50 °F
SSE 10kt
< 1ft
Friday
High: 75 °F
S 15kt
1-2ft
Friday Night
Low: 58 °F
S 10kt
< 1ft
Saturday
High: 83 °F
Light Wind
< 1ft
Saturday Night
Low: 58 °F
Light Wind
< 1ft
Sunday
High: 78 °F
SSE 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: 8:21 am CDT May 13, 2026
Forecast Valid: 9am CDT May 13, 2026-6pm CDT May 19, 2026

View Nearby Observations

Detailed Forecast

Today

N wind 10 to 15 kt becoming NE in the afternoon. Winds could gust as high as 20 kt. Partly sunny. Waves 1 to 2 ft.

Tonight

Variable winds 5 kt or less. Winds could gust as high as 15 kt. Mostly cloudy, then gradually becoming clear. Waves around 1 ft.

Thursday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Thursday Night

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

Friday

S wind 10 to 15 kt, with gusts as high as 20 kt. A chance of showers before 1pm. Waves 1 to 2 ft.

Friday Night

S wind 5 to 10 kt, with gusts as high as 15 kt. 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 ft or less.

Saturday

Variable winds 5 kt or less. Winds could gust as high as 10 kt. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm. Waves 1 ft or less.

Sunday

SSE wind around 10 kt, with gusts as high as 15 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.