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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 58 °F
E 15kt
4ft

Small Craft Advisory
Thursday
High: 61 °F
ESE 15kt
1-3ft
Thursday Night
Low: 52 °F
WNW 20kt
1-2ft
Friday
High: 55 °F
NW 25kt
3-5ft
Friday Night
Low: 48 °F
N 30kt⇓
8-10ft
Saturday
High: 56 °F
N 10kt
6ft
Saturday Night
Low: 47 °F
SSW 10kt
1ft
Sunday
High: 62 °F
SSW 10kt
1ft
Sunday Night
Low: 51 °F
SSW 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: 9:51 pm CDT Oct 14, 2026
Forecast Valid: 12am CDT Oct 15, 2026-6pm CDT Oct 21, 2026

View Nearby Observations

Detailed Forecast

Overnight

E wind around 15 kt. Mostly cloudy. Waves around 4 ft.

Thursday

ESE wind 10 to 15 kt. Showers, with thunderstorms also possible after 4pm. Waves 1 to 3 ft.

Thursday Night

ESE wind 10 to 20 kt becoming WNW after midnight. Showers likely and possibly a thunderstorm. Waves 1 to 2 ft.

Friday

NW wind 20 to 25 kt. Showers, mainly after 1pm. A slight chance of waterspouts after 4pm. Waves 3 to 5 ft.

Friday Night

N wind 25 to 30 kt decreasing to 15 to 20 kt after midnight. Winds could gust as high as 35 kt. A chance of showers before 1am. A slight chance of waterspouts before 1am. Waves 8 to 10 ft. occasionally to 13ft.

Saturday

N wind 5 to 10 kt becoming SW in the afternoon. Sunny. Waves 6 ft subsiding to 2 ft.

Saturday Night

SSW wind 5 to 10 kt. Clear. Waves around 1 ft.

Sunday

SSW wind around 10 kt, with gusts as high as 15 kt. Sunny. Waves around 1 ft.

Sunday Night

SSW wind around 10 kt. Mostly clear. Waves 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.