SXUS83 KLOT 091605 OMRLOT ILZ104-101715- Southern Lake Michigan Water Temperatures National Weather Service Chicago/Romeoville IL 1105 AM CDT Thu Jul 9 2026 Lake Michigan Water Temperatures... Chicago Shore...........72. Chicago Crib............67. Chicago Buoy............72. Wilmette Buoy...........71. Waukegan Buoy...........69. Winthrop Harbor Buoy....69. Michigan City...........61. Michigan City Buoy......74. South Mid Lake Buoy.....71. Central Mid Lake Buoy...68. North Mid Lake Buoy.....67. && M is for missing data that is normally available. Chicago Shore, Chicago Crib, and Michigan City are read every day of the year. Measured at a depth of 60 ft for Chicago Crib and 30 ft for Michigan City. May not represent surface temperature. For Lake Michigan water levels, please see: water.usace.army.mil/office/lre/forecast/weekly $$