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: 2:46 am CST Mar 1, 2026
Forecast Valid: 2am CST Mar 1, 2026-6pm CST Mar 7, 2026

Sunday

NE wind 10 to 15 kt. Mostly sunny. Waves 2 to 4 ft.

Sunday Night

NE wind around 10 kt becoming SE after midnight. Mostly cloudy. Waves 1 to 2 ft.

Monday

SE wind 5 to 10 kt. Mostly sunny. Waves 1 to 2 ft.

Monday Night

Variable winds 5 kt or less. A chance of showers after midnight. Waves around 1 ft.

Tuesday

Variable winds 5 kt or less. Showers. Waves 1 ft or less.

Tuesday Night

NE wind around 10 kt. A chance of showers and thunderstorms. Waves around 1 ft.

Wednesday

E wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after noon. Waves around 1 ft.

Wednesday Night

NNE wind 5 to 10 kt becoming NNW after midnight. A chance of showers. Waves 1 ft or less.

Thursday

N wind 5 to 10 kt becoming SSE in the afternoon. A chance of showers. 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.