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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 79 °F
SSE 10kt
1-2ft
Tonight
Low: 74 °F
Light Wind
< 1ft
Sunday
High: 84 °F
W 10kt
< 1ft
Sunday Night
Low: 70 °F
NNW 10kt
< 1ft
Monday
High: 75 °F
NNE 10kt
1-2ft
Monday Night
Low: 68 °F
Light Wind
< 1ft
Tuesday
High: 82 °F
SW 10kt
< 1ft
Tuesday Night
Low: 71 °F
SSW 10kt
< 1ft
Wednesday
High: 77 °F
N 15kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 5:33 am CDT Aug 15, 2026
Forecast Valid: 5am CDT Aug 15, 2026-6pm CDT Aug 21, 2026

View Nearby Observations

Detailed Forecast

Today

SE wind 5 to 10 kt becoming S in the afternoon. Showers likely and possibly a thunderstorm before 11am, then a chance of showers. Waves 1 to 2 ft.

Tonight

Variable winds 5 kt or less. A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 2am, then a chance of showers and thunderstorms after 2am. Waves 1 ft or less.

Sunday

WSW wind around 10 kt becoming NW in the afternoon. A chance of showers and thunderstorms, mainly before 9am. Waves 1 ft or less.

Sunday Night

NNW wind around 10 kt. Partly cloudy. Waves 1 ft or less.

Monday

NNE wind 5 to 10 kt. Sunny. Waves 1 to 2 ft.

Monday Night

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

Tuesday

SW wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Tuesday Night

SSW wind 5 to 10 kt. A chance of showers, then showers likely and possibly a thunderstorm after 1am. Waves 1 ft or less.

Wednesday

SW wind 10 to 15 kt becoming N in the afternoon. A chance of showers and thunderstorms. Waves 1 to 2 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.