For More Weather Information:

4NM ENE Chicago IL

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 3:36 pm CDT Oct 9, 2026
Forecast Valid: 7pm CDT Oct 9, 2026-6pm CDT Oct 16, 2026

Tonight

ESE wind around 10 kt becoming S after midnight. Mostly clear. Waves 1 to 2 ft.

Saturday

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

Saturday Night

SE wind around 10 kt. Mostly cloudy. Waves 1 to 2 ft.

Sunday

Variable winds 5 kt or less. Cloudy through mid morning, then gradual clearing. Waves 1 ft or less.

Sunday Night

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

Columbus Day

SSW wind around 10 kt, with gusts as high as 15 kt. Mostly sunny. Waves 1 ft or less.

Monday Night

SW wind around 10 kt. A chance of showers and thunderstorms. Waves 1 ft or less.

Tuesday

NW wind 10 to 15 kt becoming N in the afternoon. Mostly sunny. Waves 1 ft building to 4 ft.

Tuesday Night

N wind around 15 kt. Partly cloudy. Waves 3 to 4 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.