


Calumet Harbor IL to Gary IN Marine Forecast
Updated 9:15pm CDT Aug 26, 2026
Rest Of Tonight
Variable winds less than 10 kt becoming northwest 10 to 15 kt late. Becoming mostly clear. Waves 1 to 3 ft.
Thursday
Northwest winds 10 to 15 kt becoming northeast late.
Thursday Night
Northeast winds 10 to 15 kt diminishing to around 5 kt. Mostly clear. Waves 1 to 3 ft.
Friday
East winds around 5 kt becoming around 10 kt. Sunny.