For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 67 °F
NNE 10kt
< 1ft
Wednesday
High: 72 °F
NE 10kt
2ft
Wednesday Night
Low: 68 °F
NE 10kt
1-2ft
Thursday
High: 73 °F
N 10kt
< 1ft
Thursday Night
Low: 68 °F
NE 10kt
1-2ft
Friday
High: 72 °F
E 15kt
2-3ft
Friday Night
Low: 70 °F
ESE 15kt
2ft
Saturday
High: 79 °F
S 10kt
< 1ft
Saturday Night
Low: 68 °F
NNE 15kt
3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:11 pm CDT Sep 15, 2026
Forecast Valid: 10pm CDT Sep 15, 2026-6pm CDT Sep 22, 2026

View Nearby Observations

Detailed Forecast

Tonight

NNE wind 5 to 10 kt becoming NNW after midnight. A chance of showers and thunderstorms, mainly after midnight. Waves 1 ft or less.

Wednesday

NE wind around 10 kt. A slight chance of showers and thunderstorms. Waves around 2 ft.

Wednesday Night

NE wind 5 to 10 kt becoming E after midnight. A chance of showers and thunderstorms, mainly after 10pm. Waves 1 to 2 ft.

Thursday

N wind 5 to 10 kt. A chance of showers and thunderstorms before 1pm. Waves 1 ft or less.

Thursday Night

NE wind around 10 kt. Mostly cloudy. Waves 1 to 2 ft.

Friday

E wind 10 to 15 kt. A chance of showers and thunderstorms, mainly after 1pm. Waves 2 to 3 ft.

Friday Night

E wind 10 to 15 kt becoming SSE after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves around 2 ft.

Saturday

S wind around 10 kt becoming SW in the afternoon. Showers likely, with thunderstorms also possible after 1pm. Waves 1 ft or less.

Saturday Night

W wind 10 to 15 kt becoming NNE after midnight. Showers likely and possibly a thunderstorm. Waves 1 ft or less building 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.