For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 77 °F
SW 10kt
< 1ft
Tonight
Low: 61 °F
Light Wind
< 1ft
Sunday
High: 81 °F
S 15kt
< 1ft
Sunday Night
Low: 68 °F
S 15kt
1-2ft
Monday
High: 84 °F
SSW 20kt
1-2ft
Monday Night
Low: 68 °F
S 15kt
2ft
Tuesday
High: 84 °F
SSW 20kt
1-2ft
Tuesday Night
Low: 51 °F
WSW 15kt
1ft
Wednesday
High: 55 °F
NNE 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: 3:11 pm CDT May 16, 2026
Forecast Valid: 3pm CDT May 16, 2026-6pm CDT May 22, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SW wind around 10 kt. Mostly sunny. Waves 1 ft or less.

Tonight

Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly after 3am. Waves 1 ft or less.

Sunday

E wind 5 to 15 kt becoming S in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms, mainly before 7am. Waves 1 ft or less.

Sunday Night

S wind around 15 kt, with gusts as high as 25 kt. Partly cloudy. Waves 1 to 2 ft.

Monday

SSW wind 15 to 20 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.

Monday Night

S wind around 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms. Waves around 2 ft.

Tuesday

SSW wind around 20 kt, with gusts as high as 30 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.

Tuesday Night

WSW wind 10 to 15 kt becoming NNW after midnight. A chance of showers before 1am. Waves around 1 ft.

Wednesday

NNE wind around 10 kt, with gusts as high as 15 kt. Partly 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.