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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 44 °F
E 10kt
< 1ft
Tonight
Low: 34 °F
⇑SW 25kt
4ft
Friday
High: 37 °F
W 30kt
4-6ft

Gale Warning
Friday Night
Low: 32 °F
W 25kt
2-4ft

Gale Warning
Saturday
High: 38 °F
WNW 15kt
1-2ft
Saturday Night
Low: 31 °F
NW 20kt
4ft
Sunday
High: 33 °F
NW 25kt
7ft
Sunday Night
Low: 28 °F
NNW 30kt
11ft
Monday
High: 32 °F
NNW 30kt⇓
11ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:26 pm CST Feb 19, 2026
Forecast Valid: 1pm CST Feb 19, 2026-6pm CST Feb 25, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

E wind around 10 kt. A chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Waves 1 ft or less.

Tonight

E wind 10 to 15 kt becoming SW 20 to 25 kt after midnight. Winds could gust as high as 30 kt. Rain and thunderstorms before 1am, then a slight chance of rain after 5am. Waves 1 ft building to 4 ft.

Friday

SW wind 25 to 30 kt becoming W in the morning. Winds could gust as high as 40 kt. A chance of rain before 9am, then a slight chance of snow between 9am and noon. Waves 4 to 6 ft. occasionally to 8ft.

Friday Night

W wind 15 to 25 kt, with gusts as high as 30 kt. Mostly cloudy, then gradually becoming mostly clear. Waves 2 to 4 ft.

Saturday

WNW wind 10 to 15 kt. Partly sunny. Waves 1 to 2 ft.

Saturday Night

NW wind 15 to 20 kt. A chance of snow after midnight. Waves 1 ft building to 4 ft.

Sunday

NW wind 20 to 25 kt. A chance of snow. Waves 4 ft building to 7 ft.

Sunday Night

NNW wind 25 to 30 kt. A chance of snow. Waves 7 ft building to 11 ft.

Monday

NNW wind 25 to 30 kt decreasing to 15 to 20 kt in the afternoon. Mostly cloudy. Waves 11 ft subsiding to 7 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.