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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 41 °F
W 15kt
1ft
Monday
High: 45 °F
NW 15kt
1-2ft
Monday Night
Low: 32 °F
N 20kt
6ft
Tuesday
High: 41 °F
NNE 15kt
5ft
Tuesday Night
Low: 35 °F
SSE 15kt
1-2ft
Wednesday
High: 56 °F
S 20kt
3ft
Wednesday Night
Low: 51 °F
S 25kt
3-5ft
Thursday
High: 59 °F
SSW 20kt
4ft
Thursday Night
Low: 44 °F
SW 10kt
1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 9:07 pm CDT Apr 5, 2026
Forecast Valid: 9pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026

View Nearby Observations

Detailed Forecast

Tonight

WSW wind 10 to 15 kt becoming WNW after midnight. Showers likely, mainly before 2am. Waves around 1 ft.

Monday

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

Monday Night

N wind 15 to 20 kt. A slight chance of rain and snow showers before 11pm, then a slight chance of snow showers between 11pm and midnight. Waves 2 ft building to 6 ft.

Tuesday

NNE wind 5 to 15 kt. Mostly sunny. Waves 5 ft subsiding to 2 ft.

Tuesday Night

ENE wind 5 to 15 kt becoming SSE after midnight. Mostly cloudy. Waves 1 to 2 ft.

Wednesday

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

Wednesday Night

S wind 20 to 25 kt. A chance of showers, mainly after 1am. Waves 3 to 5 ft.

Thursday

SSW wind 10 to 20 kt. A chance of showers. Waves 4 ft subsiding to 1 ft.

Thursday Night

SW wind around 10 kt becoming NW after midnight. A chance of showers. Waves around 1 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.