Latest official daily lake-wide mean: 175.36 m (575.33 ft), for September 7, 2026.
This is the provisional lake-wide daily mean published by the U.S. Army Corps of Engineers, referenced to International Great Lakes Datum 1985 (IGLD 1985). It is not a shoreline depth, flood prediction, or a reading from one local gauge.
How to use this level
Daily means are best for tracking short-term direction across Lake St. Clair. Local conditions can differ because of wind setup, waves, seiches, weather, and harbor geometry. Boaters and shoreline visitors should also check local forecasts and gauges before making decisions.
Official data and long-term context
Data status: provisional. Last site refresh: September 8, 2026. Automated updates may trail the source publication.
View all Great Lakes water levels