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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 38 °F
E 10kt
1ft
Tonight
Low: 37 °F
E 15kt
2-3ft
Sunday
High: 60 °F
S 20kt
3ft
Sunday Night
Low: 24 °F
NW 30kt
8ft
Monday
High: 28 °F
WNW 25kt
7-9ft
Monday Night
Low: 14 °F
WNW 20kt
3-5ft
Tuesday
High: 26 °F
W 15kt
1-2ft
Tuesday Night
Low: 22 °F
S 15kt
1-2ft
Wednesday
High: 43 °F
S 15kt
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 11:56 am CDT Mar 14, 2026
Forecast Valid: 12pm CDT Mar 14, 2026-6pm CDT Mar 20, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

E wind 5 to 10 kt. A slight chance of snow showers before 4pm. Waves around 1 ft.

Tonight

E wind 10 to 15 kt, with gusts as high as 20 kt. A chance of showers, mainly between 1am and 4am. Waves 2 to 3 ft.

Sunday

S wind 15 to 20 kt, with gusts as high as 35 kt. A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Waves around 3 ft.

Sunday Night

SSW wind 20 to 30 kt becoming NNW in the evening. Winds could gust as high as 40 kt. Rain showers before 1am, then rain and snow showers between 1am and 4am, then snow showers after 4am. Some thunder is also possible. Waves 2 ft building to 8 ft.

Monday

WNW wind around 25 kt, with gusts as high as 40 kt. Snow showers, mainly before 1pm. Widespread freezing spray. Waves 7 to 9 ft. occasionally to 12ft.

Monday Night

WNW wind around 20 kt, with gusts as high as 30 kt. Widespread freezing spray before 11pm. Mostly cloudy. Waves 3 to 5 ft.

Tuesday

W wind 10 to 15 kt. Mostly sunny. Waves 1 to 2 ft.

Tuesday Night

WSW wind 5 to 15 kt becoming S after midnight. A chance of snow. Waves 1 to 2 ft.

Wednesday

S wind 10 to 15 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 3 ft subsiding to 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.