For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Wednesday
High: 72 °F
SSW 10kt
1ft
Wednesday Night
Low: 62 °F
S 10kt
< 1ft
Thursday
High: 67 °F
WSW 10kt
< 1ft
Thursday Night
Low: 57 °F
Light Wind
< 1ft
Friday
High: 71 °F
SSE 10kt
1ft
Friday Night
Low: 49 °F
SSE 15kt
1-2ft
Saturday
High: 62 °F
W 15kt
1-2ft
Saturday Night
Low: 53 °F
W 15kt
1ft
Sunday
High: 51 °F
WNW 15kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:21 am CDT Apr 15, 2026
Forecast Valid: 1am CDT Apr 15, 2026-6pm CDT Apr 21, 2026

View Nearby Observations

Detailed Forecast

Wednesday

SSW wind around 10 kt, with gusts as high as 20 kt. Showers and thunderstorms likely before 10am, then showers likely and possibly a thunderstorm between 10am and 4pm, then showers and thunderstorms likely after 4pm. Patchy fog before 9am. Waves around 1 ft.

Wednesday Night

S wind around 10 kt, with gusts as high as 20 kt. Showers and thunderstorms likely before 10pm, then showers and possibly a thunderstorm between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Waves 1 ft or less.

Thursday

SSW wind around 10 kt becoming WNW in the afternoon. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 7am. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. A slight chance of thunderstorms before 7pm. Waves 1 ft or less.

Friday

SSE wind 5 to 10 kt, with gusts as high as 20 kt. Partly sunny. Waves around 1 ft.

Friday Night

SSE wind 10 to 15 kt. Showers and possibly a thunderstorm. Waves 1 to 2 ft.

Saturday

SSW wind around 15 kt becoming W in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms. Waves 1 to 2 ft.

Saturday Night

W wind around 15 kt. Partly cloudy. Waves around 1 ft.

Sunday

WNW wind around 15 kt, with gusts as high as 20 kt. Mostly 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.