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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 39 °F
N 15kt
1-2ft
Friday
High: 41 °F
N 15kt
1-2ft
Friday Night
Low: 37 °F
NNE 10kt
1ft
Saturday
High: 49 °F
Light Wind
< 1ft
Saturday Night
Low: 46 °F
S 15kt
1-2ft
Sunday
High: 65 °F
S 20kt
2-3ft
Sunday Night
Low: 55 °F
SSW 25kt
4ft
Monday
High: 64 °F
SSW 20kt
2-4ft
Monday Night
Low: 55 °F
SSW 20kt
2-4ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:34 pm CDT Apr 9, 2026
Forecast Valid: 8pm CDT Apr 9, 2026-6pm CDT Apr 16, 2026

View Nearby Observations

Detailed Forecast

Tonight

E wind 5 to 15 kt becoming N after midnight. A chance of showers and thunderstorms before 2am, then showers and possibly a thunderstorm between 2am and 4am, then showers after 4am. Waves 1 to 2 ft.

Friday

N wind 10 to 15 kt. Showers likely, mainly before noon. Waves 1 to 2 ft.

Friday Night

NNE wind 5 to 10 kt. Mostly clear. Waves around 1 ft.

Saturday

Variable winds 5 kt or less. Mostly sunny. Waves 1 ft or less.

Saturday Night

E wind 10 to 15 kt becoming S after midnight. A slight chance of showers and thunderstorms, then a chance of showers after 10pm. Waves 1 to 2 ft.

Sunday

S wind 15 to 20 kt, with gusts as high as 25 kt. A slight chance of showers. Waves 2 to 3 ft.

Sunday Night

SSW wind 20 to 25 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Waves around 4 ft.

Monday

SSW wind 15 to 20 kt. A chance of showers. Waves 2 to 4 ft.

Monday Night

SSW wind 15 to 20 kt. A chance of showers. Waves 2 to 4 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.