For More Weather Information:

Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 76 °F
E 10kt
< 1ft
Tonight
Low: 71 °F
ESE 10kt
1ft
Friday
High: 73 °F
ENE 10kt
1ft
Friday Night
Low: 73 °F
ENE 10kt
1ft
Saturday
High: 84 °F
SE 10kt
1ft
Saturday Night
Low: 75 °F
SW 10kt
< 1ft
Sunday
High: 83 °F
W 10kt
< 1ft
Sunday Night
Low: 70 °F
N 10kt
< 1ft
Monday
High: 76 °F
NNE 10kt
2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 10:45 am CDT Aug 13, 2026
Forecast Valid: 11am CDT Aug 13, 2026-6pm CDT Aug 19, 2026

View Nearby Observations

Detailed Forecast

Today

SE wind 5 to 10 kt becoming E in the afternoon. Showers likely and possibly a thunderstorm, mainly after 4pm. Waves 1 ft or less.

Tonight

ENE wind around 10 kt becoming SE after midnight. Showers likely and possibly a thunderstorm. Waves around 1 ft.

Friday

ENE wind around 10 kt. Showers and thunderstorms likely before 5pm, then a chance of showers. Waves around 1 ft.

Friday Night

ENE wind around 10 kt becoming SE after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves around 1 ft.

Saturday

SE wind around 10 kt becoming S in the afternoon. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Waves around 1 ft.

Saturday Night

SW wind around 10 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves 1 ft or less.

Sunday

W wind 5 to 10 kt becoming N in the afternoon. A chance of showers and thunderstorms, mainly after 1pm. Waves 1 ft or less.

Sunday Night

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

Monday

NNE wind around 10 kt. Mostly sunny. Waves around 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.