The summer is not over yet in New York State. In fact, many of us will see the mercury rise in to the upper 80's and possibly 90 degree range.

Lake Ontario is experiencing a late summer change as the water temps have dipped back again.

On Monday, the water temperature on Lake Ontario was pretty chilly.

139 AM EDT Mon Aug 28 2023 Due to upwelling, the water temperature off Rochester is 47

When was the last time you swam in a lake? Perhaps this summer, because of the heat, you and the family have been trying different pools and lakes for relief? For the most part, the lakes and ocean waters have been pretty refreshing here in New York State. There are places around the country in which the water temps are reaching record highs well in to the 90's.

Back here in the Empire State, we are seeing the water temps staying a little more moderate. Lake Erie, for example, is hovering in the mid 70's.

But another major body of water that folks in New York rely on has changed over the last couple of days. Lake Ontario is now back in the 60 degree range after seeing temps in the 50's just the day before!

The reason? A term know to forecasters as UPWELLING

Occurs when dense cool nutrient rich water from the bottom of the water column offshore replaces the nutrient depleted surface water in the nearshore.

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