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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 31 °F
N 30kt
13ft

Gale Warning
Friday
High: 33 °F
N 20kt
9ft
Friday Night
Low: 31 °F
⇑NW 20kt
2-4ft
Saturday
High: 43 °F
N 10kt
1-3ft
Saturday Night
Low: 41 °F
S 15kt
1-2ft
Sunday
High: 52 °F
SSW 15kt
1-2ft
Sunday Night
Low: 45 °F
S 10kt
1-2ft
Monday
High: 55 °F
SSW 15kt
1-2ft
Monday Night
Low: 48 °F
S 20kt
5ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 7:35 pm CDT Mar 26, 2026
Forecast Valid: 7pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026

View Nearby Observations

Detailed Forecast

Tonight

N wind 25 to 30 kt, with gusts as high as 40 kt. Rain, mainly before midnight. Waves 8 ft building to 13 ft.

Friday

N wind 10 to 20 kt. Mostly cloudy, then gradually becoming sunny. Waves 9 ft subsiding to 4 ft.

Friday Night

N wind 5 to 10 kt becoming NW 15 to 20 kt in the evening. Mostly clear. Waves 2 to 4 ft.

Saturday

N wind 5 to 10 kt becoming S in the afternoon. Sunny. Waves 1 to 3 ft.

Saturday Night

S wind 10 to 15 kt. Mostly cloudy. Waves 1 to 2 ft.

Sunday

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

Sunday Night

S wind around 10 kt. Mostly cloudy. Waves 1 to 2 ft.

Monday

SSW wind 10 to 15 kt becoming NE in the afternoon. Mostly sunny. Waves 1 to 2 ft.

Monday Night

NNE wind 10 to 20 kt becoming SSW after midnight. A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after 1am. Waves 2 ft building to 5 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.