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4NM ENE Chicago IL

[NOTICE]

High and low forecast temperature values represent air temperature.

Water temperature forecast is experimental.

Last Update: 9:26 pm CDT Oct 3, 2025
Forecast Valid: 11pm CDT Oct 3, 2025-6pm CDT Oct 10, 2025

Overnight

Variable winds 5 kt or less. Mostly clear. Waves 1 ft or less.

Saturday

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

Saturday Night

S wind around 10 kt. Mostly clear. Waves 1 ft or less.

Sunday

S wind 10 to 15 kt. Sunny. Waves around 1 ft.

Sunday Night

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

Monday

SW wind around 10 kt. A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Monday Night

N wind 5 to 10 kt. Showers and possibly a thunderstorm. Waves 1 ft or less.

Tuesday

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

Tuesday Night

N wind 10 to 15 kt. Mostly clear. Waves 1 ft building 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.