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Chicago, IL Local Forecast Office

17NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Tonight
Low: 31 °F
N 30kt
12ft

Gale Warning
Monday
High: 33 °F
N 20kt
8ft
Monday Night
Low: 33 °F
S 10kt
1-3ft
Tuesday
High: 47 °F
S 10kt
< 1ft
Tuesday Night
Low: 41 °F
SSE 10kt
< 1ft
Wednesday
High: 51 °F
S 10kt
1ft
Wednesday Night
Low: 46 °F
S 15kt
1ft
Thursday
High: 56 °F
S 15kt
1ft
Thursday Night
Low: 34 °F
⇑N 30kt
12ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 6:42 pm CDT Mar 22, 2026
Forecast Valid: 7pm CDT Mar 22, 2026-6pm CDT Mar 29, 2026

View Nearby Observations

Detailed Forecast

Tonight

N wind 20 to 30 kt, with gusts as high as 35 kt. A slight chance of rain before 8pm, then a chance of sprinkles and flurries between 8pm and 9pm. Waves 12 ft subsiding to 9 ft.

Monday

N wind 10 to 20 kt. Partly sunny, then gradually becoming sunny. Waves 8 ft subsiding to 4 ft.

Monday Night

ENE wind around 10 kt becoming S after midnight. Partly cloudy. Waves 1 to 3 ft.

Tuesday

S wind 5 to 10 kt. Partly sunny. Waves 1 ft or less.

Tuesday Night

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

Wednesday

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

Wednesday Night

S wind 10 to 15 kt. A slight chance of rain and thunderstorms before 1am. Waves around 1 ft.

Thursday

S wind 10 to 15 kt becoming NNW in the afternoon. A chance of rain. Waves around 1 ft.

Thursday Night

N wind 15 to 20 kt increasing to 25 to 30 kt after midnight. A chance of rain. Waves 2 ft building to 12 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.