For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 67 °F
SE 20kt
4ft

Gale Warning
Tonight
Low: 61 °F
WSW 15kt
1-3ft

Small Craft Advisory
Thursday
High: 72 °F
WNW 15kt
< 1ft

Small Craft Advisory
Thursday Night
Low: 61 °F
W 10kt
< 1ft
Juneteenth
High: 75 °F
WNW 10kt
< 1ft
Friday Night
Low: 63 °F
Light Wind
< 1ft
Saturday
High: 76 °F
NW 10kt
< 1ft
Saturday Night
Low: 64 °F
Light Wind
< 1ft
Sunday
High: 71 °F
E 15kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:22 pm CDT Jun 17, 2026
Forecast Valid: 3pm CDT Jun 17, 2026-6pm CDT Jun 23, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SE wind around 20 kt, with gusts as high as 30 kt. Showers and possibly a thunderstorm. Some of the storms could be severe and produce heavy rainfall. Waves around 4 ft.

Tonight

WSW wind 10 to 15 kt, with gusts as high as 25 kt. Showers and thunderstorms likely, mainly before 9pm. Some of the storms could be severe. Waves 1 to 3 ft.

Thursday

WNW wind 5 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Waves 1 ft or less.

Thursday Night

W wind 5 to 10 kt. Partly cloudy. Waves 1 ft or less.

Juneteenth

WNW wind 5 to 10 kt. Sunny. Waves 1 ft or less.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Saturday

WSW wind 5 to 10 kt becoming NE in the afternoon. Mostly sunny. Waves 1 ft or less.

Saturday Night

Variable winds 5 kt or less. Partly cloudy. Waves 1 ft or less.

Sunday

E wind 10 to 15 kt. A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 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.