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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 70 °F
NNW 15kt
1-2ft
Tonight
Low: 65 °F
N 10kt
1-2ft
Monday
High: 76 °F
WSW 10kt
< 1ft
Monday Night
Low: 67 °F
SW 15kt
< 1ft
Tuesday
High: 73 °F
SSW 15kt
2ft
Tuesday Night
Low: 65 °F
WSW 15kt
1-2ft
Wednesday
High: 75 °F
SE 20kt
3ft
Wednesday Night
Low: 67 °F
SSE 25kt
4-5ft
Thursday
High: 74 °F
W 20kt
2-3ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:37 am CDT Jun 14, 2026
Forecast Valid: 5am CDT Jun 14, 2026-6pm CDT Jun 20, 2026

View Nearby Observations

Detailed Forecast

Today

NNW wind 10 to 15 kt. A chance of showers, mainly before 8am. Waves 1 to 2 ft.

Tonight

N wind 5 to 10 kt becoming WSW after midnight. Winds could gust as high as 15 kt. Mostly clear. Waves 1 to 2 ft.

Monday

WSW wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Waves 1 ft or less.

Monday Night

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

Tuesday

SSW wind around 15 kt, with gusts as high as 20 kt. A slight chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm, then showers and possibly a thunderstorm after 1pm. Waves around 2 ft.

Tuesday Night

WSW wind 10 to 15 kt. Partly cloudy. Waves 1 to 2 ft.

Wednesday

WSW wind 10 to 20 kt becoming SE in the afternoon. Winds could gust as high as 30 kt. A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Waves 1 ft or less building to 3 ft.

Wednesday Night

SE wind 20 to 25 kt becoming WSW after midnight. Winds could gust as high as 30 kt. Showers and possibly a thunderstorm before 1am, then a chance of showers. Waves 4 to 5 ft.

Thursday

W wind 10 to 20 kt becoming NW in the afternoon. Mostly sunny. Waves 2 to 3 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.