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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 37 °F
⇑S 35kt
9ft

Storm Warning
Friday
High: 41 °F
W 35kt
7-8ft

Storm Warning
Friday Night
Low: 32 °F
WNW 25kt⇓
6ft

Storm Warning
Saturday
High: 38 °F
ESE 10kt
1-3ft
Saturday Night
Low: 38 °F
E 20kt
2-4ft
Sunday
High: 54 °F
S 25kt
5-6ft
Sunday Night
Low: 26 °F
⇑NNW 30kt
19ft
Monday
High: 32 °F
WNW 35kt
19ft
Monday Night
Low: 17 °F
WNW 35kt
11ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 12:32 am CDT Mar 13, 2026
Forecast Valid: 12am CDT Mar 13, 2026-6pm CDT Mar 19, 2026

View Nearby Observations

Detailed Forecast

Overnight

S wind 25 to 30 kt increasing to 30 to 35 kt. Winds could gust as high as 45 kt. Rain likely, mainly before 4am. Waves 4 ft building to 9 ft.

Friday

WSW wind 30 to 35 kt becoming WNW in the afternoon. Winds could gust as high as 50 kt. Partly sunny. Waves 7 to 8 ft. occasionally to 10ft.

Friday Night

WNW wind 20 to 25 kt decreasing to 10 to 15 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Waves 6 ft subsiding to 3 ft.

Saturday

N wind 5 to 10 kt becoming SE in the afternoon. Cloudy. Waves 1 to 3 ft.

Saturday Night

E wind 15 to 20 kt. Rain likely, mainly after 1am. Waves 2 to 4 ft.

Sunday

ESE wind 20 to 25 kt becoming S in the afternoon. Rain likely, mainly after 1pm. Waves 5 to 6 ft. occasionally to 8ft.

Sunday Night

SW wind 20 to 25 kt becoming NNW 25 to 30 kt after midnight. Winds could gust as high as 40 kt. Rain before 1am, then snow, possibly mixed with rain between 1am and 4am, then snow after 4am. Some thunder is also possible. Waves 7 ft building to 19 ft.

Monday

WNW wind 30 to 35 kt, with gusts as high as 40 kt. Snow. Widespread freezing spray before noon, then Widespread freezing spray after 4pm. Waves 19 ft subsiding to 13 ft.

Monday Night

WNW wind 25 to 35 kt. A chance of snow. Widespread freezing spray. Waves 11 ft subsiding to 8 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.