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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 71 °F
N 15kt
1-2ft
Tonight
Low: 60 °F
N 10kt
1ft
Monday
High: 72 °F
SE 10kt
1ft
Monday Night
Low: 69 °F
SSE 20kt
2-3ft
Tuesday
High: 81 °F
SSW 15kt
1-2ft
Tuesday Night
Low: 67 °F
NNE 10kt
< 1ft
Wednesday
High: 71 °F
NE 10kt
2ft
Wednesday Night
Low: 69 °F
NE 10kt
1-2ft
Thursday
High: 78 °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: 3:25 am CDT Sep 13, 2026
Forecast Valid: 8am CDT Sep 13, 2026-6pm CDT Sep 19, 2026

View Nearby Observations

Detailed Forecast

Today

N wind 10 to 15 kt. Scattered showers, mainly after 2pm. Waves 1 to 2 ft.

Tonight

N wind 5 to 10 kt becoming NE after midnight. Mostly clear. Waves around 1 ft.

Monday

SE wind 5 to 10 kt, with gusts as high as 15 kt. Increasing clouds. Waves around 1 ft.

Monday Night

SSE wind 15 to 20 kt. A chance of showers and thunderstorms after 1am. Waves 2 to 3 ft.

Tuesday

SSW wind 10 to 15 kt becoming W in the afternoon. A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.

Tuesday Night

NNW wind 5 to 10 kt becoming NNE after midnight. Showers likely and possibly a thunderstorm. Waves 1 ft or less.

Wednesday

NE wind around 10 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Waves around 2 ft.

Wednesday Night

NE wind around 10 kt becoming ESE after midnight. A chance of showers, then showers likely and possibly a thunderstorm after 1am. Waves 1 to 2 ft.

Thursday

SSE wind around 10 kt becoming NW in the afternoon. Showers likely, mainly before 1pm. 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.