Great Lakes water temperatures range from very cold to warm. Here's a look at water temperatures across the lakes as of June ...

Seatemperature.org says the average temperature of Lake Ontario is 41.9 degrees Fahrenheit in May. It rises in June to 58.8, and 70.5 in July, before topping out at nearly 73 degrees in August. In ...

Lake Erie reaches an average of 76.1 degrees Fahrenheit in August. Lake Michigan's average temperature was 57.2 degrees, according to Seatemperature.com as of June 13. Lake Michigan reaches an ...

Lake Huron has an average depth of 195 feet and a maximum depth of 750 feet, according to the U.S. Environmental Protection ...

Lake Huron reaches an average of 69.1 degrees Fahrenheit in August. The warmest water temperature in Lake Ontario on June 13 was 62.1 degrees near Niagara Falls, Canada. Lake Ontario reaches an ...

Seatemperature.org says the average temperature of Lake Ontario is 41.9 degrees Fahrenheit in May. It rises in June to 58.8, and 70.5 in July, before topping out at nearly 73 degrees in August.