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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 80 °F
SSW 15kt
1-2ft

Small Craft Advisory
Tonight
Low: 67 °F
S 15kt
1-2ft

Small Craft Advisory
Monday
High: 81 °F
SSW 20kt
1-2ft
Monday Night
Low: 67 °F
SSW 15kt
1-2ft
Tuesday
High: 81 °F
SSW 20kt
1-2ft
Tuesday Night
Low: 50 °F
WNW 15kt
1ft
Wednesday
High: 53 °F
NNE 10kt
1-2ft
Wednesday Night
Low: 47 °F
NNE 10kt
1-2ft
Thursday
High: 57 °F
ENE 10kt
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: 2:01 pm CDT May 17, 2026
Forecast Valid: 2pm CDT May 17, 2026-6pm CDT May 23, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SSE wind around 15 kt becoming SSW. Winds could gust as high as 25 kt. Partly sunny. Waves 1 to 2 ft.

Tonight

S wind around 15 kt, with gusts as high as 25 kt. Partly cloudy. Waves 1 to 2 ft.

Monday

SSW wind 15 to 20 kt. A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 3pm, then a chance of showers and thunderstorms after 3pm. Waves 1 to 2 ft.

Monday Night

SSW wind around 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms after 1am. Waves 1 to 2 ft.

Tuesday

SSW wind 15 to 20 kt becoming W in the afternoon. Winds could gust as high as 25 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Waves 1 to 2 ft.

Tuesday Night

WNW wind 10 to 15 kt becoming N after midnight. Mostly cloudy. Waves around 1 ft.

Wednesday

NNE wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves 1 to 2 ft.

Wednesday Night

NNE wind around 10 kt. Partly cloudy. Waves 1 to 2 ft.

Thursday

ENE wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. 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.