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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 am CDT Aug 1, 2026
Forecast Valid: 1am CDT Aug 1, 2026-6pm CDT Aug 7, 2026

Saturday

E wind 20 to 25 kt becoming NE in the afternoon. Showers and possibly a thunderstorm. Waves 4 to 6 ft. occasionally to 8ft.

Saturday Night

NE wind 20 to 30 kt. Showers and thunderstorms likely before 10pm, then a chance of showers. Waves 7 to 8 ft. occasionally to 10ft.

Sunday

NNE wind around 20 kt, with gusts as high as 25 kt. A slight chance of showers, mainly between 9am and 10am. Waves around 6 ft.

Sunday Night

N wind 10 to 20 kt. Cloudy during the early evening, then gradual clearing. Waves 6 ft subsiding to 3 ft.

Monday

NNE wind around 10 kt. Sunny. Waves 1 to 3 ft.

Monday Night

NNE wind 5 to 10 kt. Mostly clear. Waves around 1 ft.

Tuesday

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

Tuesday Night

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

Wednesday

Variable winds 5 kt or less. Mostly sunny. 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.