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: 3:41 am CST Feb 28, 2026
Forecast Valid: 3am CST Feb 28, 2026-6pm CST Mar 6, 2026

Saturday

N wind 10 to 15 kt becoming NE in the afternoon. Winds could gust as high as 25 kt. A chance of snow, mainly before 3pm. Waves 2 to 3 ft.

Saturday Night

N wind 15 to 20 kt. Mostly cloudy. Waves 3 to 4 ft.

Sunday

NNE wind 10 to 15 kt. A slight chance of snow showers before noon. Waves 2 to 4 ft.

Sunday Night

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

Monday

SE wind around 10 kt. Mostly sunny. Waves around 1 ft.

Monday Night

SE wind around 10 kt. Rain likely, mainly after midnight. Waves around 1 ft.

Tuesday

SE wind 5 to 10 kt becoming N in the afternoon. Rain. Waves around 1 ft.

Tuesday Night

N wind around 10 kt becoming ENE after midnight. A chance of rain. Waves 1 to 3 ft.

Wednesday

E wind 5 to 10 kt. A chance of rain. Waves 1 to 3 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.