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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Thursday
High: 39 °F
Light Wind
< 1ft
Thursday Night
Low: 37 °F
Light Wind
< 1ft
Friday
High: 67 °F
S 15kt
< 1ft
Friday Night
Low: 57 °F
S 20kt
1-2ft
Saturday
High: 60 °F
SW 15kt
1ft
Saturday Night
Low: 40 °F
WNW 10kt
< 1ft
Sunday
High: 56 °F
SW 15kt
< 1ft
Sunday Night
Low: 46 °F
SW 15kt
1ft
Monday
High: 65 °F
SSW 15kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:45 am CST Mar 5, 2026
Forecast Valid: 4am CST Mar 5, 2026-6pm CDT Mar 11, 2026

View Nearby Observations

Detailed Forecast

Thursday

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

Thursday Night

Variable winds 5 kt or less. Widespread dense fog. Waves 1 ft or less.

Friday

SE wind 5 to 15 kt becoming S in the afternoon. Winds could gust as high as 20 kt. Showers likely and possibly a thunderstorm before noon, then a slight chance of showers and thunderstorms between noon and 3pm, then a slight chance of showers after 3pm. Widespread fog, mainly before noon. Waves 1 ft or less.

Friday Night

S wind 15 to 20 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Waves 1 to 2 ft.

Saturday

SW wind 10 to 15 kt becoming WNW in the afternoon. Winds could gust as high as 20 kt. A chance of showers, mainly before 9am. Waves around 1 ft.

Saturday Night

WNW wind 5 to 10 kt becoming WSW after midnight. Partly cloudy. Waves 1 ft or less.

Sunday

SW wind 10 to 15 kt, with gusts as high as 20 kt. Sunny. Waves 1 ft or less.

Sunday Night

SW wind around 15 kt. Mostly clear. Waves around 1 ft.

Monday

SSW wind 10 to 15 kt, with gusts as high as 20 kt. Sunny. 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.