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: 2:51 pm CDT Aug 16, 2026
Forecast Valid: 3pm CDT Aug 16, 2026-6pm CDT Aug 22, 2026

This Afternoon

WNW wind around 10 kt. Scattered showers and thunderstorms. Waves 1 ft or less.

Tonight

N wind around 10 kt. Scattered showers and thunderstorms, mainly before 8pm. Waves 1 ft or less.

Monday

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

Monday Night

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

Tuesday

WSW wind 5 to 10 kt. A slight chance of showers and thunderstorms after 1pm. Waves 1 ft or less.

Tuesday Night

WSW wind 5 to 10 kt becoming NW after midnight. Showers likely and possibly a thunderstorm. Waves 1 ft or less.

Wednesday

N wind 5 to 10 kt becoming NE in the afternoon. A chance of showers and thunderstorms before 1pm. Waves 1 ft or less.

Wednesday Night

NE wind 5 to 10 kt. Partly cloudy. Waves around 1 ft.

Thursday

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.