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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Overnight
Low: 35 °F
NE 10kt
< 1ft
Wednesday
High: 43 °F
E 10kt
< 1ft
Wednesday Night
Low: 41 °F
E 10kt
< 1ft
Thursday
High: 44 °F
E 10kt
< 1ft
Thursday Night
Low: 41 °F
Light Wind
< 1ft
Friday
High: 57 °F
S 15kt
1-2ft
Friday Night
Low: 47 °F
SSW 20kt
2-4ft
Saturday
High: 49 °F
SW 20kt
4ft
Saturday Night
Low: 42 °F
SW 15kt
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: 10:17 pm CST Mar 3, 2026
Forecast Valid: 11pm CST Mar 3, 2026-6pm CDT Mar 10, 2026

View Nearby Observations

Detailed Forecast

Overnight

NE wind 5 to 10 kt. Mostly cloudy. Waves 1 ft or less.

Wednesday

E wind 5 to 10 kt. A slight chance of rain after 5pm. Patchy fog between 3pm and 5pm. Waves 1 ft or less.

Wednesday Night

E wind 5 to 10 kt. Rain likely, mainly after midnight. Patchy dense fog between 9pm and 4am. Waves 1 ft or less.

Thursday

E wind 5 to 10 kt becoming NNW in the afternoon. Rain before 9am, then rain and possibly a thunderstorm between 9am and noon, then a chance of rain after noon. Waves 1 ft or less.

Thursday Night

Variable winds 5 kt or less. Cloudy. Waves 1 ft or less.

Friday

SE wind 10 to 15 kt becoming SSW in the afternoon. Rain likely and possibly a thunderstorm before noon, then rain between noon and 3pm, then rain and possibly a thunderstorm after 3pm. Waves 1 to 2 ft.

Friday Night

SSW wind 15 to 20 kt. Rain likely before midnight, then rain and possibly a thunderstorm between midnight and 3am, then rain after 3am. Waves 2 to 4 ft.

Saturday

SW wind 10 to 20 kt becoming NW in the afternoon. A chance of rain. Waves 4 ft subsiding to 1 ft.

Saturday Night

WNW wind 10 to 15 kt becoming SW after midnight. Partly cloudy. 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.