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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 72 °F
Light Wind
< 1ft
Tonight
Low: 63 °F
NE 10kt
< 1ft
Wednesday
High: 66 °F
NNE 15kt
3ft
Wednesday Night
Low: 60 °F
NNE 20kt
4-5ft
Thursday
High: 61 °F
E 15kt
1-3ft
Thursday Night
Low: 54 °F
⇑NW 30kt
5ft
Friday
High: 58 °F
NW 35kt
12ft
Friday Night
Low: 51 °F
N 35kt⇓
13ft
Saturday
High: 58 °F
NNW 10kt
6ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 1:21 pm CDT Oct 13, 2026
Forecast Valid: 1pm CDT Oct 13, 2026-6pm CDT Oct 19, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

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

Tonight

NE wind 5 to 10 kt. Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers after 4am. Waves 1 ft or less.

Wednesday

NNE wind 10 to 15 kt. A slight chance of showers, mainly between 8am and 9am. Waves 1 ft or less building to 3 ft.

Wednesday Night

NNE wind 15 to 20 kt becoming E after midnight. Mostly cloudy. Waves 4 to 5 ft.

Thursday

E wind 10 to 15 kt. Showers and thunderstorms likely before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then showers after 4pm. Waves 1 to 3 ft.

Thursday Night

ESE wind 10 to 20 kt becoming NW 20 to 30 kt in the evening. Showers and possibly a thunderstorm. Waves 1 ft building to 5 ft.

Friday

NW wind 30 to 35 kt, with gusts as high as 40 kt. A chance of showers, mainly after 1pm. Waves 7 ft building to 12 ft.

Friday Night

N wind 30 to 35 kt decreasing to 20 to 25 kt after midnight. Partly cloudy. Waves 13 ft subsiding to 8 ft.

Saturday

NNW wind 5 to 10 kt becoming SW in the afternoon. Sunny. Waves 6 ft subsiding 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.