May 2026
May 3 Water Levels Report
Lake Michigan-Huron is now 7 inches hgher than it was at this time last year.
From a month ago, the water levels on Lakes Superior, Michigan-Huron, St. Clair, Erie & Ontario are up 7, 14, 11, 9 & 15 inches, respectively. Lakes Superior, Michigan-Huron, St. Clair & Ontario levels are up 4, 7, 2 & 17 inches, respectively, from last year. Lake Erie levels are the same as they were at this time last year. Lakes Michigan-Huron, St. Clair, Erie & Ontario are 0, 2, 1 & 10 inches above their long-term May averages. Lake Superior is 1 inch below its long-term May averages. All the lakes remain well below their May record highs.
In a month, Lakes Superior, Michigan-Huron, St. Clair, Erie & Ontario levels are expected to rise by 4, 3, 2, 2 & 4 inches, res