We're out here on Lake Ontario trolling for lake trout. It's early May and the water temperature is 44 degrees Fahrenheit (6 degrees Celsius. I've chosen to run with the American Smelt - specifically ...

Swimming is most comfortable in lake waters at about 70 degrees, according to Swimoutlet.com. While scattered thunderstorms ...

The warmest water temperature of the Great Lakes today is 81.1 degrees in Lake Erie and the coldest is at 65.1 degrees in Lake Michigan.