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Chicago, IL Local Forecast Office

4NM ENE Chicago IL

Marine Point Forecast

[NOTICE]

Today
High: 36 °F
ENE 10kt
2-4ft

Small Craft Advisory
Tonight
Low: 34 °F
SSE 15kt
1-2ft
Wednesday
High: 63 °F
S 20kt
2ft
Wednesday Night
Low: 52 °F
S 15kt
1-2ft
Thursday
High: 66 °F
SW 10kt
< 1ft
Thursday Night
Low: 44 °F
ESE 10kt
< 1ft
Friday
High: 49 °F
N 10kt
1ft
Friday Night
Low: 42 °F
Light Wind
1ft
Saturday
High: 51 °F
ENE 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: 3:56 am CDT Apr 7, 2026
Forecast Valid: 8am CDT Apr 7, 2026-6pm CDT Apr 13, 2026

View Nearby Observations

Detailed Forecast

Today

ENE wind around 10 kt. Sunny. Waves 2 to 4 ft.

Tonight

ENE wind 5 to 15 kt becoming SSE after midnight. Mostly cloudy. Waves 1 to 2 ft.

Wednesday

S wind 15 to 20 kt. Partly sunny. Waves around 2 ft.

Wednesday Night

S wind around 15 kt, with gusts as high as 25 kt. A chance of showers before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers likely after 4am. Waves 1 to 2 ft.

Thursday

SW wind around 10 kt, with gusts as high as 15 kt. A chance of showers. Waves 1 ft or less.

Thursday Night

WSW wind 5 to 10 kt becoming E after midnight. Showers likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 4am, then showers likely after 4am. Waves 1 ft or less.

Friday

N wind around 10 kt. A chance of showers before 1pm. Waves around 1 ft.

Friday Night

Variable winds 5 kt or less. Partly cloudy. Waves around 1 ft.

Saturday

ENE wind 5 to 10 kt. Mostly sunny. Waves around 1 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.