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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 68 °F
SW 10kt
< 1ft
Tonight
Low: 47 °F
Light Wind
< 1ft
Friday
High: 74 °F
SSE 15kt
1-2ft
Friday Night
Low: 48 °F
S 15kt
1-2ft
Saturday
High: 55 °F
W 15kt
1ft
Saturday Night
Low: 39 °F
WNW 15kt
1ft
Sunday
High: 50 °F
WNW 15kt
1ft
Sunday Night
Low: 39 °F
NW 10kt
1ft
Monday
High: 54 °F
E 10kt
2-3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 4:01 am CDT Apr 16, 2026
Forecast Valid: 7am CDT Apr 16, 2026-6pm CDT Apr 22, 2026

View Nearby Observations

Detailed Forecast

Today

SSW wind around 10 kt becoming NNE in the afternoon. Winds could gust as high as 20 kt. Scattered showers and thunderstorms, mainly before 3pm. Patchy fog after 1pm. Waves 1 ft or less.

Tonight

Variable winds 5 kt or less. Areas of fog. Waves 1 ft or less.

Friday

SSE wind 5 to 15 kt, with gusts as high as 25 kt. Areas of fog before 1pm. Waves 1 to 2 ft.

Friday Night

S wind around 15 kt becoming SW after midnight. Winds could gust as high as 25 kt. Showers and thunderstorms likely before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then showers after 4am. Waves 1 to 2 ft.

Saturday

W wind around 15 kt, with gusts as high as 25 kt. A chance of showers, mainly before 9am. Waves around 1 ft.

Saturday Night

WNW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly clear. Waves around 1 ft.

Sunday

WNW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Waves around 1 ft.

Sunday Night

NW wind 5 to 10 kt. Partly cloudy. Waves around 1 ft.

Monday

E wind around 10 kt becoming SE in the afternoon. Sunny. Waves 2 to 3 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.