According the most recent information from the Great Lakes Environmental Research Laboratory, the Great Lakes have a total ice coverage of 45.4%.

At this same time during 2017, the Great Lakes had ice coverage of 8.7%. In 2016, the Great Lakes had ice coverage of 12.7%.
By lake, Lake Erie has the most ice coverage at this point, with most of the lake covered in ice.

Recent visible satellite image of ice on Lake Erie (GLERL).
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Meteorologist Marcus Walter.