Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5NM offshore to Mid Lake Marine Forecast

Hourly forecast at zone center

Hourly wind and waves

Gusts peak near 21kts around 12:00 AM, with waves reaching 2.1ft around 12:00 AM.

Sunday, October 11

6:10 AM CDT

Wind Now

10ktsSSE

Gusts:12kts

Wind Now: 10 kts; gusts 12 kts. Use left and right arrows to inspect hours; Escape to reset.

Waves Now

1.3ftSSE

Period2s

Waves Now: 1.3 ft; period 2 seconds. Use left and right arrows to inspect hours; Escape to reset.

NOAA marine forecast

Updated 2:33am CDT Oct 11, 2026

Southeast winds 10 to 20 kt becoming south. Waves 4 to 6 ft occasionally to 8 ft subsiding to 3 to 5 ft.

South winds 10 to 20 kt. Waves 2 to 4 ft.

South winds 10 to 20 kt increasing to 15 to 25 kt.

Southwest winds 10 to 20 kt. Chance of showers.

West winds 10 to 20 kt becoming northwest 15 to 25 kt.

North winds 15 to 25 kt diminishing to 10 to 20 kt. Waves 4 to 6 ft occasionally to 8 ft.

North winds 10 to 20 kt. Waves 3 to 5 ft.

East winds 15 to 25 kt. Chance of showers. Waves 5 to 8 ft occasionally to 10 ft.

Loading map…

Interactive Mapbox map highlighting marine forecast zone LMZ777.