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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 33 °F
SSE 20kt
3-5ft

Small Craft Advisory
Tonight
Low: 30 °F
SSE 20kt
5ft

Small Craft Advisory
Sunday
High: 34 °F
WNW 20kt
2-3ft

Small Craft Advisory
Sunday Night
Low: 20 °F
NW 15kt
1-3ft

Small Craft Advisory
Monday
High: 27 °F
Light Wind
< 1ft
Monday Night
Low: 21 °F
WNW 10kt
< 1ft
Tuesday
High: 26 °F
W 10kt
< 1ft
Tuesday Night
Low: 19 °F
SW 15kt
< 1ft
Wednesday
High: 31 °F
SW 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: 10:36 am CST Nov 29, 2025
Forecast Valid: 11am CST Nov 29, 2025-6pm CST Dec 5, 2025

View Nearby Observations

Detailed Forecast

Today

SSE wind 15 to 20 kt, with gusts as high as 30 kt. Snow. The snow could be heavy at times. Waves 3 to 5 ft.

Tonight

SSE wind 15 to 20 kt becoming W after midnight. Winds could gust as high as 30 kt. Snow before 11pm, then snow, possibly mixed with rain between 11pm and 4am, then snow likely after 4am. Waves 5 ft subsiding to 1 ft.

Sunday

WNW wind 15 to 20 kt, with gusts as high as 30 kt. Snow likely before noon. Waves 2 to 3 ft.

Sunday Night

NW wind 5 to 15 kt, with gusts as high as 20 kt. Mostly cloudy. Waves 1 to 3 ft.

Monday

Variable winds 5 kt or less. A chance of snow after noon. Waves 1 ft or less.

Monday Night

SW wind 5 to 10 kt becoming WNW after midnight. Snow likely, mainly before midnight. Waves 1 ft or less.

Tuesday

WNW wind around 10 kt becoming WSW in the afternoon. A slight chance of snow before noon. Waves 1 ft or less.

Tuesday Night

SW wind 10 to 15 kt. Mostly cloudy. Waves 1 ft or less.

Wednesday

SW wind around 15 kt becoming W in the afternoon. Mostly cloudy. 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.