The Great Lakes are generally lower than normal now, and expected to rise about a normal amount through summer. This forecast is based on average amounts of precipitation.

Heat waves and cold spells are part of life on the Great Lakes. But new research from the University of Michigan shows that is true today in a fundamentally different way than it was even 30 years ...

Most of Michigan's Great Lakes' water levels are below their 2024 monthly averages. Since May 6, 2025, the Great Lakes have seen a slight rise, ranging from 1-7 inches.

Officials recorded below-average water levels compared to 2024 for the Great Lakes, ranging from 1-8 inches lower. Here's what's expected in June.

Past threats to the Great Lakes were single contaminants like mercury or PCBs from single sources, but microplastics are a diverse suite of contaminants from many different places, ...

The Great Lakes reached their highest ice coverage (52.23%) since February 2022. Lake Superior was the last of the Great Lakes to become ice-free on May 11, 2025. As of June 6, 2025, water ...

Lake Michigan was the second-coldest of the five Great Lakes with an average of 51.1 degrees. Lake Ontario posted a high reading of 54.3 degrees, and Lake Huron's high was 63.5 degrees in Saginaw Bay.