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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 69 °F
SW 10kt
< 1ft
Tonight
Low: 46 °F
N 10kt
< 1ft
Saturday
High: 54 °F
N 15kt
1-2ft
Saturday Night
Low: 46 °F
N 15kt
2ft
Sunday
High: 59 °F
ENE 10kt
1-2ft
Sunday Night
Low: 51 °F
ESE 15kt
1-2ft
Monday
High: 68 °F
SE 20kt
2-3ft
Monday Night
Low: 52 °F
SSE 20kt
1-3ft
Tuesday
High: 64 °F
W 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: 5:00 am CDT Apr 24, 2026
Forecast Valid: 9am CDT Apr 24, 2026-6pm CDT Apr 30, 2026

View Nearby Observations

Detailed Forecast

Today

SW wind around 10 kt becoming W in the afternoon. Winds could gust as high as 20 kt. A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then a chance of showers and thunderstorms after 2pm. Waves 1 ft or less.

Tonight

N wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Saturday

N wind 10 to 15 kt. Mostly cloudy, then gradually becoming sunny. Waves 1 to 2 ft.

Saturday Night

N wind 10 to 15 kt becoming ENE after midnight. Partly cloudy. Waves around 2 ft.

Sunday

ENE wind around 10 kt. Mostly sunny. Waves 1 to 2 ft.

Sunday Night

ENE wind 10 to 15 kt becoming ESE after midnight. Mostly cloudy. Waves 1 to 2 ft.

Monday

SE wind 15 to 20 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 2 to 3 ft.

Monday Night

SSE wind 15 to 20 kt becoming SW after midnight. Showers, mainly before 1am. Waves 1 to 3 ft.

Tuesday

W wind around 15 kt, with gusts as high as 20 kt. Partly 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.