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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 46 °F
S 15kt
1ft
Tuesday
High: 74 °F
SSW 15kt
1ft
Tuesday Night
Low: 49 °F
W 10kt
< 1ft
Wednesday
High: 55 °F
Light Wind
< 1ft
Wednesday Night
Low: 51 °F
Light Wind
< 1ft
Thursday
High: 79 °F
S 15kt
< 1ft
Thursday Night
Low: 59 °F
S 15kt
1ft
Friday
High: 70 °F
S 10kt
< 1ft
Friday Night
Low: 48 °F
NNW 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: 7:05 pm CDT Apr 20, 2026
Forecast Valid: 7pm CDT Apr 20, 2026-6pm CDT Apr 27, 2026

View Nearby Observations

Detailed Forecast

Tonight

SE wind 10 to 15 kt becoming S after midnight. Winds could gust as high as 20 kt. Mostly cloudy. Waves around 1 ft.

Tuesday

SSW wind 10 to 15 kt becoming WSW in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms, mainly after 4pm. Waves around 1 ft.

Tuesday Night

W wind 5 to 10 kt becoming NNW after midnight. A chance of showers and thunderstorms, mainly before 7pm. Waves 1 ft or less.

Wednesday

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

Wednesday Night

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

Thursday

S wind 10 to 15 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

S wind around 15 kt. A chance of showers and thunderstorms, mainly after 1am. Waves around 1 ft.

Friday

S wind around 10 kt, with gusts as high as 15 kt. A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Waves 1 ft or less.

Friday Night

WSW wind 5 to 10 kt becoming NNW after midnight. A chance of showers before 1am. 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.