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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 33 °F
N 30kt
10ft

Gale Warning
Friday
High: 38 °F
N 20kt⇓
8ft
Friday Night
Low: 31 °F
NW 10kt
1-2ft
Saturday
High: 48 °F
S 10kt
1ft
Saturday Night
Low: 42 °F
S 10kt
1ft
Sunday
High: 60 °F
SSW 10kt
1ft
Sunday Night
Low: 47 °F
SSW 10kt
< 1ft
Monday
High: 63 °F
SSW 10kt
< 1ft
Monday Night
Low: 50 °F
E 15kt
4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:23 pm CDT Mar 26, 2026
Forecast Valid: 6pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026

View Nearby Observations

Detailed Forecast

Tonight

N wind 25 to 30 kt, with gusts as high as 35 kt. Showers and possibly a thunderstorm before midnight, then a slight chance of showers between midnight and 1am. Waves 5 ft building to 10 ft.

Friday

N wind 15 to 20 kt decreasing to 10 to 15 kt in the afternoon. Mostly cloudy, then gradually becoming sunny. Waves 8 ft subsiding to 3 ft.

Friday Night

N wind 5 to 10 kt becoming WNW in the evening. Mostly clear. Waves 1 to 2 ft.

Saturday

NW wind 5 to 10 kt becoming S in the afternoon. Sunny. Waves around 1 ft.

Saturday Night

S wind around 10 kt, with gusts as high as 15 kt. Mostly cloudy. Waves around 1 ft.

Sunday

SSW wind around 10 kt. Partly sunny. Waves around 1 ft.

Sunday Night

SSW wind around 10 kt. Mostly cloudy. Waves 1 ft or less.

Monday

SSW wind around 10 kt becoming NNE in the afternoon. Mostly sunny. Waves 1 ft or less.

Monday Night

NNE wind 10 to 15 kt becoming SSW after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves 1 ft building to 4 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.