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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: 1:21 pm CDT Mar 11, 2026
Forecast Valid: 1pm CDT Mar 11, 2026-6pm CDT Mar 17, 2026

This Afternoon

NNW wind around 20 kt, with gusts as high as 30 kt. Rain, snow, and sleet before 2pm, then a chance of rain and snow. Waves around 4 ft.

Tonight

NW wind 10 to 20 kt. A slight chance of snow before 8pm. Waves 2 to 4 ft.

Thursday

W wind 5 to 10 kt becoming SW in the afternoon. Sunny. Waves 1 to 2 ft.

Thursday Night

S wind 10 to 20 kt increasing to 20 to 30 kt after midnight. Winds could gust as high as 40 kt. A chance of showers. Waves 1 ft building to 4 ft.

Friday

SW wind 25 to 30 kt becoming W in the afternoon. Winds could gust as high as 45 kt. Partly sunny. Waves around 3 ft.

Friday Night

WNW wind 10 to 15 kt, with gusts as high as 25 kt. Mostly cloudy. Waves around 1 ft.

Saturday

Variable winds 5 kt or less. A slight chance of snow after 1pm. Waves around 1 ft.

Saturday Night

E wind 10 to 15 kt increasing to 15 to 20 kt after midnight. Rain and snow showers likely, mainly after 1am. Waves 2 ft building to 6 ft.

Sunday

ESE wind 20 to 25 kt becoming NNE in the afternoon. Rain and snow showers, becoming all rain after 1pm. Waves 6 ft building to 9 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.