Great Lakes water temperatures starting to warm, but Lake Superior still in 30s

Here's a look at how much the Great Lakes waters are warming.

Great Lakes Swim Season Summaries

Ice Cover: NOAA Great Lakes Environmental Research Laboratory - Ann Arbor, MI, USA

Lake Ontario & Erie see warmest lake waters in 26 years

This weekend's Full Strawberry Moon is an almost-summer treat

Great Lakes ice coverage hits a record low

Great Lakes Swim Season Summaries

A Lake of Superior Cold

Great Lakes Swim Season Summaries

Seasonal overturn and stratification changes drive deep-water warming in one of Earth's largest lakes