For More Weather Information:

Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Sunday
High: 72 °F
NNE 20kt
5-7ft
Sunday Night
Low: 69 °F
N 20kt⇓
7ft
Monday
High: 73 °F
ENE 10kt
1-2ft
Monday Night
Low: 69 °F
Light Wind
< 1ft
Tuesday
High: 78 °F
Light Wind
< 1ft
Tuesday Night
Low: 74 °F
S 10kt
< 1ft
Wednesday
High: 79 °F
SW 10kt
< 1ft
Wednesday Night
Low: 73 °F
Light Wind
< 1ft
Thursday
High: 77 °F
Light Wind
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 3:13 am CDT Aug 2, 2026
Forecast Valid: 4am CDT Aug 2, 2026-6pm CDT Aug 8, 2026

View Nearby Observations

Detailed Forecast

Sunday

NNE wind around 20 kt. Partly sunny. Waves 5 to 7 ft. occasionally to 9ft.

Sunday Night

N wind 15 to 20 kt becoming ENE 10 to 15 kt after midnight. Mostly clear. Waves 7 ft subsiding to 4 ft.

Monday

ENE wind 5 to 10 kt becoming NNE in the afternoon. Sunny. Waves 1 to 2 ft.

Monday Night

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Tuesday

Variable winds 5 kt or less. Sunny. Waves 1 ft or less.

Tuesday Night

SSE wind 5 to 10 kt becoming SSW after midnight. Partly cloudy. Waves 1 ft or less.

Wednesday

SW wind 5 to 10 kt becoming ESE in the afternoon. A chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Waves 1 ft or less.

Thursday

Variable winds 5 kt or less. A chance of showers and thunderstorms. 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.