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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 74 °F
S 15kt
2ft
Tonight
Low: 62 °F
S 20kt
3ft
Monday
High: 70 °F
S 20kt
3ft
Monday Night
Low: 64 °F
S 20kt
3ft
Tuesday
High: 77 °F
SSW 20kt
2-4ft
Tuesday Night
Low: 49 °F
NNW 15kt
2ft
Wednesday
High: 54 °F
NNE 15kt
2-3ft
Wednesday Night
Low: 48 °F
NNE 10kt
2ft
Thursday
High: 59 °F
NNE 10kt
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: 2:37 pm CDT May 17, 2026
Forecast Valid: 4pm CDT May 17, 2026-6pm CDT May 24, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 15 kt, with gusts as high as 25 kt. Partly sunny. Waves around 2 ft.

Tonight

S wind 15 to 20 kt. Partly cloudy. Waves around 3 ft.

Monday

S wind around 20 kt. A chance of showers and thunderstorms before 9am, then showers likely and possibly a thunderstorm between 9am and 5pm, then a chance of showers and thunderstorms after 5pm. Waves around 3 ft.

Monday Night

S wind 15 to 20 kt. A chance of showers and thunderstorms before midnight, then a chance of showers and thunderstorms after 1am. Waves around 3 ft.

Tuesday

SSW wind 15 to 20 kt becoming W in the afternoon. A slight chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 2 to 4 ft.

Tuesday Night

WNW wind 10 to 15 kt becoming N after midnight. A slight chance of showers before 1am. Waves around 2 ft.

Wednesday

NNE wind 10 to 15 kt. Mostly sunny. Waves 2 to 3 ft.

Wednesday Night

NNE wind around 10 kt. Partly cloudy. Waves around 2 ft.

Thursday

NNE wind around 10 kt. Mostly sunny. 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.