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Chicago, IL Local Forecast Office

5NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 17 °F
NNW 25kt
6-7ft

Small Craft Advisory
Thursday
High: 27 °F
NNW 20kt
5ft

Small Craft Advisory
Thursday Night
Low: 25 °F
SSW 20kt
1-2ft
Friday
High: 37 °F
W 15kt
1ft
Friday Night
Low: 16 °F
W 15kt
1ft
Saturday
High: 20 °F
W 15kt
1ft
Saturday Night
Low: 11 °F
W 15kt
1ft
Sunday
High: 20 °F
SW 15kt
1ft
Sunday Night
Low: 10 °F
W 20kt
1-2ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 12:11 am CST Jan 15, 2026
Forecast Valid: 12am CST Jan 15, 2026-6pm CST Jan 21, 2026

View Nearby Observations

Detailed Forecast

Overnight

NNW wind 20 to 25 kt, with gusts as high as 30 kt. A slight chance of snow showers. Widespread freezing spray. Waves 6 to 7 ft. occasionally to 9ft.

Thursday

NNW wind 10 to 20 kt becoming SW in the afternoon. Winds could gust as high as 25 kt. Widespread freezing spray before 8am. Partly sunny. Waves 5 ft subsiding to 2 ft.

Thursday Night

SSW wind 10 to 20 kt, with gusts as high as 25 kt. Snow, mainly after midnight. Waves 1 to 2 ft.

Friday

W wind around 15 kt, with gusts as high as 25 kt. Snow showers likely, mainly before noon. Waves around 1 ft.

Friday Night

W wind 10 to 15 kt, with gusts as high as 20 kt. A chance of snow. Waves around 1 ft.

Saturday

W wind around 15 kt, with gusts as high as 25 kt. A chance of snow. Waves around 1 ft.

Saturday Night

W wind around 15 kt, with gusts as high as 25 kt. A slight chance of snow. Waves around 1 ft.

Sunday

SW wind around 15 kt, with gusts as high as 20 kt. Mostly cloudy. Waves around 1 ft.

Sunday Night

WSW wind 15 to 20 kt becoming WNW after midnight. Winds could gust as high as 30 kt. Mostly cloudy. Waves 1 to 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.