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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

This Afternoon
High: 72 °F
SW 10kt
1ft
Tonight
Low: 62 °F
SW 10kt
< 1ft
Tuesday
High: 74 °F
W 20kt
1-2ft

Small Craft Advisory
Tuesday Night
Low: 60 °F
WNW 15kt
< 1ft

Small Craft Advisory
Wednesday
High: 72 °F
⇑SSE 20kt
3ft
Wednesday Night
Low: 63 °F
S 20kt
1-3ft
Thursday
High: 72 °F
NW 15kt
1ft
Thursday Night
Low: 61 °F
W 10kt
1ft
Juneteenth
High: 72 °F
WNW 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Associated Zone Forecast which includes this point

Last Update: 2:51 pm CDT Jun 15, 2026
Forecast Valid: 3pm CDT Jun 15, 2026-6pm CDT Jun 21, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SW wind around 10 kt, with gusts as high as 15 kt. Partly sunny. Waves around 1 ft.

Tonight

SW wind around 10 kt. Partly cloudy. Waves 1 ft or less.

Tuesday

SSW wind 10 to 20 kt becoming W in the afternoon. Winds could gust as high as 30 kt. A chance of showers and thunderstorms, mainly between 8am and 5pm. Waves 1 to 2 ft.

Tuesday Night

WNW wind 5 to 15 kt becoming SW after midnight. Winds could gust as high as 25 kt. Partly cloudy. Waves 1 ft or less.

Wednesday

SSW wind 5 to 10 kt becoming SSE 15 to 20 kt in the afternoon. Winds could gust as high as 30 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10am. Some of the storms could produce heavy rainfall. Waves 1 ft or less building to 3 ft.

Wednesday Night

S wind 15 to 20 kt becoming W after midnight. Winds could gust as high as 25 kt. Showers and possibly a thunderstorm before 10pm, then a chance of showers and thunderstorms between 10pm and 1am. Waves 1 to 3 ft.

Thursday

NW wind around 15 kt, with gusts as high as 25 kt. Partly sunny. Waves around 1 ft.

Thursday Night

W wind 5 to 10 kt. Mostly clear. Waves around 1 ft.

Juneteenth

WNW wind around 10 kt, with gusts as high as 15 kt. Sunny. Waves 1 ft or less.

*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.